本次实验中,我们将使用Spring+Spring MVC+Mybatis+freemarker 来实现一个简单的个人在线简历系统,主要完成简历的生成和导出功能。
本次实验的源码可以通过以下地址获取
wget http://labfile.oss.aliyuncs.com/courses/875/Resume.zip
本次实验所需要得 JAR 包可以通过以下命令获取:
wget http://labfile.oss.aliyuncs.com/courses/875/SSMf.zip
下载完成后,通过使用命令:
unzip SSMf.zip
将压缩包解压,解压的目录在主文件夹下。将JAR包解压后,接下来打开环境中的 eclipse,创建本次实验的项目。打开 eclipse
后,创建一个名为 Resume
的Dynamic Web Project项目,创建时记得勾选自动生成 web.xml
文件。项目创建完成后,将刚才下载并解压的JAR包复制到新建项目的 WEB-INF/lib
目录下,复制完成后,右键点击项目,依次点击 Build Path-->Configure Build Path-->Libraries-->Add JARs
,然后选择我们刚才新建的项目Resume,打开lib目录,将目录下全部的Jar包选中,点击 OK,然后在 Order And Export
中选中全部的 JAR 包,点击 OK,这样就完成了 JAR 包的导入。
由于 Mybatis 框架不能像 Hibernate 那样通过配置文件或者注解自动建表,所以本次实验所需的数据库和数据表需要我们自己建立。首先在在线环境中打开数据库服务。打开环境桌面上的 Xfce 终端,使用以下命令打开服务:
sudo service mysql start
然后使用命令:
mysql -u root
进入数据库(在线环境中的数据库用户名为 root,密码为无),进入数据库后,创建我们本次实验所需的数据库 resume,命令如下:
create database resume;
创建完成后,我们进入resume数据库,创建数据表。用命令:
use resume;
进入数据库,然后使用命令创建数据表basic_info:
CREATE TABLE `basic_info` ( `Id` int(10) NOT NULL AUTO_INCREMENT, `Name` varchar(20) DEFAULT NULL, `Gender` varchar(20) DEFAULT NULL, `Age` int(10) DEFAULT NULL, `Address` varchar(20) DEFAULT NULL, `Email` varchar(20) DEFAULT NULL, `Tel` varchar(20) DEFAULT NULL, `School` varchar(20) DEFAULT NULL, `Introduce` varchar(10000) DEFAULT NULL, `UserId` int(20) DEFAULT NULL, PRIMARY KEY (`Id`) );
使用命令:
CREATE TABLE `educational_info` ( `Eduid` int(20) NOT NULL AUTO_INCREMENT, `School` varchar(20) DEFAULT NULL, `Major` varchar(20) DEFAULT NULL, `Education` varchar(20) DEFAULT NULL, `Graduation` varchar(40) DEFAULT NULL, `Userid` int(20) NOT NULL, PRIMARY KEY (`Eduid`,`Userid`) );
创建数据表 education_info 。然后创建 user_info 数据表:
CREATE TABLE `user_info` ( `userId` int(20) NOT NULL AUTO_INCREMENT, `Name` varchar(20) NOT NULL, `Password` varchar(20) NOT NULL, PRIMARY KEY (`userId`) );
最后还需创建一个数据表,用来存储工作信息:
CREATE TABLE `work_info` ( `Workid` int(20) NOT NULL AUTO_INCREMENT, `Company` varchar(20) DEFAULT NULL, `Position` varchar(20) DEFAULT NULL, `Duty` varchar(100) DEFAULT NULL, `Departure` varchar(20) DEFAULT NULL, `Userid` int(20) NOT NULL, PRIMARY KEY (`Workid`) );
这样,本次课程的说有数据库就全部建立完成了,使用命令
show tables
可以检查刚才我们的表是否建立成功。如果结果如下,那么建立就成功了
数据库准备完成后,我们就可以进入开发阶段了。
JSP页面包括用户的登录页面、添加简历信息页面和其他的结果跳转页面。所有的JSP 页面都放在根目录 WebContent 下。
CSS 样式文件放在项目的 WebCotent 目录下,名为 All.css ,主要是设置表单、提交按钮等的格式。具体信息见如下代码:
@CHARSET "UTF-8"; .list_center{ } .list_center input{ width:278px; height:30px; border:1px solid #b2bfc8; line-height:30px; } .submit input{ width:70px; heigth:40px; border:1px; } .word_center{ width:100%;height:600px; /*设置div的大小*/ border:0px; /*边框*/ text-align: center; /*文字水平居中对齐*/ line-height: 600px; /*设置文字行距等于div的高度*/ overflow:hidden; }
login.jsp 即用户登录页面,登录成功跳转至用于添加简历基础信息的 basic.jsp 页面,失败跳转至 error.jsp 页面。login.jsp 的具体代码如下:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Login Page</title> </head> <body> <form action="login" method="post"> <table border="1" > <tr> <td>name:</td> <td><input type="text" name="name"></td> </tr> <tr> <td>Password:</td> <td><input type="password" name="password"></td> </tr> <tr> </tr> </table> <input type="submit" value="login"> <input type="reset" value="reset"> </form> </body> </html>
本页面是用于添加基础信息的,添加的基础信息需要对应我们数据库中的字段。其中userid是用隐藏表单的形式提交到后台的。具体代码如下:
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <link rel="stylesheet" type="text/css" href="css/All.css" /> <title>Basic Page</title> </head> <body> <center><h2>Welcome To Curriculum Vitae System</h2></center> <center><h4>Please Input Your Essential information</h4></center> <div class="list_center"> <form action="basic" method="post"> <table width="300" height="500" border="0" align="center"> <tr> <td align="center">Name:</td> <td><input type="text" name="Name"></td> </tr> <tr> <td align="center">Address:</td> <td><input type="text" name="Address"></td> </tr> <tr> <td align="center">Gender:</td> <td><input type="text" name="Gender"></td> </tr> <tr> <td align="center">Age:</td> <td><input type="text" name="Age"></td> </tr> <tr> <td align="center">Email:</td> <td><input type="text" name="Email"></td> </tr> <tr> <td align="center">Tel:</td> <td><input type="text" name="Tel"></td> </tr> <tr> <td align="center">School:</td> <td><input type="text" name="School"></td> </tr> <tr> <td><input type="hidden" name="Userid" value="<%=session.getAttribute("loginuser") %>"></td> </tr> <tr> <td > <div class="submit"> <input type="submit" value="continue" > </div> </td> </tr> </table> </form> </div> </body> </html>
拓展:输入内容未进行合法性验证,如果用户输入的数据和数据库的字段类型不匹配会报错。大家想想这里该如何优化呢?
Educational.jsp 是用于添加教育信息的页面,教育信息可以添加多次,每添加成功一次,由用户选择继续添加还是进行下一步操作。addEsuccess.jsp 是添加成功过后进行选择的页面。Educational.jsp 的具体代码如下:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <link rel="stylesheet" type="text/css" href="css/All.css" /> <title>Educational Page</title> </head> <body> <center><h2>Welcome To Curriculum Vitae System</h2></center> <center><h4>Please Input Your Educational experience.You can add more than one</h4></center> <div class="list_center"> <form action="addEducational" method="post"> <table width="300" height="500" border="0" align="center"> <tr> <td align="center">School:</td> <td><input type="text" name="School"></td> </tr> <tr> <td align="center">Major:</td> <td><input type="text" name="Major"></td> </tr> <tr> <td align="center">Education:</td> <td><input type="text" name="Education"></td> </tr> <tr> <td align="center">Graduation Time:</td> <td><input type="text" name="Graduation"></td> </tr> <tr> <td><input type="hidden" name="Userid" value="<%=session.getAttribute("loginuser") %>"></td> </tr> <tr> <td > <div class="submit"> <input type="submit" value="Add" > </div> </td> </tr> </table> </form> </div> </body> </html>
addEsuccess.jsp 的具体代码如下:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <link rel="stylesheet" type="text/css" href="css/All.css" /> <title>Add Educational Success</title> </head> <body> <div class="word_center"> Add success <a href="Educational.jsp?loginuser=<%=session.getAttribute("loginuser") %>"><input type="submit" value="Continue"></a> <a href="Work.jsp?loginuser=<%=session.getAttribute("loginuser") %>"><input type="submit" value="Next"></a> </div> </body> </html>
Work.jsp 是用于添加工作经历的页面,addWsuccess.jsp 是用来给用户选择继续添加还是进行下一步操作的页面,类似与上面的添加教育信息页面。Work.jsp 的具体代码如下:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <link rel="stylesheet" type="text/css" href="css/All.css" /> <title>Insert title here</title> </head> <body> <center><h2>Welcome To Curriculum Vitae System</h2></center> <center><h4>Please Input Your work experience .You can add more than one</h4></center> <div class="list_center"> <form action="addWork" method="post"> <table width="300" height="500" border="0" align="center"> <tr> <td align="center">Company:</td> <td><input type="text" name="Company"></td> </tr> <tr> <td align="center">Position:</td> <td><input type="text" name="Position"></td> </tr> <tr> <td align="center">Duty:</td> <td><input type="text" name="Duty"></td> </tr> <tr> <td align="center">Departure Time:</td> <td><input type="text" name="Departure"></td> </tr> <tr> <td><input type="hidden" name="Userid" value="<%=session.getAttribute("loginuser") %>"></td> </tr> <tr> <td > <div class="submit"> <input type="submit" value="Add" > </div> </td> </tr> </table> </form> </div> </body> </html>
addWsuccess.jsp 的具体代码如下:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <link rel="stylesheet" type="text/css" href="css/All.css" /> <title>Add Work Success</title> </head> <body> <div class="word_center"> Add success <a href="Work.jsp?loginuser=<%=session.getAttribute("loginuser") %>"><input type="submit" value="Continue"></a> <a href="Introduce.jsp?loginuser=<%=session.getAttribute("loginuser") %>"><input type="submit" value="Next"></a> </div> </body> </html>
Introduce.jsp 是用于添加简历中的自我介绍的页面,是简历生成的最后一步。添加成功则可以导出简历了,addIsuccess.jso 就是选择导出简历的页面。Introduce.jsp 的具体代码如下:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <link rel="stylesheet" type="text/css" href="css/All.css" /> <title>Introduce</title> </head> <body> <center><h2>Welcome To Curriculum Vitae System</h2></center> <center><h4>Please Introduce yourself.</h4></center> <div class="list_center"> <form action="addIntroduce" method="post"> <table width="300" height="500" border="0" align="center"> <tr> <td align="center">Introduce:</td> <td><textarea id="ta1" name="Introduce" style="width:500px;height:300px;" ></textarea></td> </tr> <tr> <td><input type="hidden" name="Userid" value="<%=session.getAttribute("loginuser") %>"></td> </tr> <tr> <td > <div class="submit"> <input type="submit" value="Add" > </div> </td> </tr> </table> </form> </div> </body> </html>
addIsuccess.jsp 的具体代码如下:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <link rel="stylesheet" type="text/css" href="css/All.css" /> <title>Insert title here</title> </head> <body> <div class="word_center"> You have added all the information, and now you can download it. <br> <a href="download?Userid=<%=session.getAttribute("loginuser") %>"><input type="submit" value="downloads"></a> </div> </body> </html>
over.jsp 是导出简历成功后的提示页面,error.jsp 是错误页面。二者皆是输出一句提示 语。
over.jsp:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>over</title> </head> <body> <center><h2> Export successful</h2></center> </body> </html>
error.jsp:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> </head> <body> <center><h2> There is a mistake here</h2></center> </body> </html>
实体类放在com.resume.model包下,为每个数据表创建一个对应的Java实体类。本次实验的实体类放在com.resume.model包下。
User_info是用户信息实体类,对应数据库中的user_info表。其具体的属性如下:
package com.resume.model; /** * User_info实体类 * 对应数据库中的user_info表 * 用户登录信息实体类 */ public class User_info { private int userid;//用户id,主键 private String Name;//登录名 private String Password;//登录密码 public int getUserid() { return userid; } public void setUserid(int userid) { this.userid = userid; } public String getName() { return Name; } public void setName(String name) { Name = name; } public String getPassword() { return Password; } public void setPassword(String password) { Password = password; } }
Basic_info 是简历的基本信息实体类,对应数据库中的basic_info表。其具体属性如下:
package com.resume.model; /** * Basic_info实体类 * 对应数据库中的basic_info表 * 简历的基本信息实体类 */ public class Basic_info { private int ID;//主键,ID private String Name;//姓名 private String Gender;//性别 private int Age;//年龄 private String Address;//地址 private String Email;//邮件 private String Tel;//电话 private String School;//毕业院校 private String Introduce;//自我介绍 private int UserId;//用户ID public int getID() { return ID; } public void setID(int iD) { ID = iD; } public String getName() { return Name; } public void setName(String name) { Name = name; } public String getGender() { return Gender; } public void setGender(String gender) { Gender = gender; } public int getAge() { return Age; } public void setAge(int age) { Age = age; } public String getAddress() { return Address; } public void setAddress(String address) { Address = address; } public String getEmail() { return Email; } public void setEmail(String email) { Email = email; } public String getTel() { return Tel; } public void setTel(String tel) { Tel = tel; } public String getSchool() { return School; } public void setSchool(String school) { School = school; } public String getIntroduce() { return Introduce; } public void setIntroduce(String introduce) { Introduce = introduce; } public int getUserId() { return UserId; } public void setUserId(int userId) { this.UserId = userId; } }
Edcuational_info 实体类是教育信息实体类,对应的是 edcuational_info 数据表,其具体属性如下:
package com.resume.model; /** * 教育信息实体类Educational_info * 对应数据库中的educational_info表 * */ public class Educational_info { private int Eduid;//主键 private String School;//学校 private String Major;//专业 private String Education;//学历 private String Graduation;//毕业时间 private int Userid;//用户 public int getEduid() { return Eduid; } public void setEduid(int eduid) { Eduid = eduid; } public String getSchool() { return School; } public void setSchool(String school) { School = school; } public String getMajor() { return Major; } public void setMajor(String major) { Major = major; } public String getEducation() { return Education; } public void setEducation(String education) { Education = education; } public String getGraduation() { return Graduation; } public void setGraduation(String graduation) { Graduation = graduation; } public int getUserid() { return Userid; } public void setUserid(int userid) { Userid = userid; } }
Work_info 是工作经历实体类,对应数据库中的 work_info 表,其具体属性如下:
package com.resume.model; /** * 工作经历实体类Work_info * 对应数据库中的work_info表 * */ public class Work_info { private int Workid;//主键 private String Company;//企业名 private String Position;//职位 private String Duty;//职责 private String Departure;//离职时间 private int Userid;//用户 public int getWorkid() { return Workid; } public void setWorkid(int workid) { Workid = workid; } public String getCompany() { return Company; } public void setCompany(String company) { Company = company; } public String getPosition() { return Position; } public void setPosition(String position) { Position = position; } public String getDuty() { return Duty; } public void setDuty(String duty) { Duty = duty; } public String getDeparture() { return Departure; } public void setDeparture(String departure) { Departure = departure; } public int getUserid() { return Userid; } public void setUserid(int userid) { Userid = userid; } }
Controller 控制层类似与 SSH 框架中的 Action 控制层,都是调用 service 层与控制结果跳转。在本次实验中,Controller 控制层的所有类都放在 com.resume.Controller 包下。
UserController 是用于处理用户登录的类,包括验证登录名和密码以及根据验证结果跳转不同页面。UserController 的具体代码和注释如下所示:
package com.resume.controller; import javax.servlet.http.HttpSession; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import com.resume.model.User_info; import com.resume.service.UserService; /** * UserController类 * 用于控制和user实体相关的操作 *用@Controller标注控制层 */ @Controller public class UserController { /* * spring自动扫描注入bean */ @Autowired public UserService userservice; //登录 @RequestMapping("/login") //User_info user用于获取表单信息,这是其中一种方法:用实体类来接收 public String login(User_info user,HttpSession session){ String ret = ""; System.out.println("user"+user.getName()); //调用service层的登录方法 User_info loginuser = userservice.login(user.getName()); //将登录者放入session,向后面的功能模块传递 session.setAttribute("loginuser", loginuser.getUserid()); //验证用户名和密码 if (user.getName()!=null) { if (loginuser.getName().equals(user.getName()) && loginuser.getPassword().equals(user.getPassword())) { //返回的是xxx.jsp中的xxx字段 ret = "basic"; }else{ ret = "error"; } }else { ret = "error"; } return ret; } }
NewresumeController 是用于处理关于生成简历的类,包括存储用户输入的基础信息、教育信息、工作经历、简历的 word 文档导出以及各自的结果跳转,其具体的代码如下所示:
package com.resume.controller; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; import javax.websocket.RemoteEndpoint.Basic; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import com.resume.model.Basic_info; import com.resume.model.Educational_info; import com.resume.model.Work_info; import com.resume.service.NewresumeService; import com.resume.tools.WordGenerator; import sun.security.acl.WorldGroupImpl; /** * NewresumeController类 * 用于控制所有的操作简历的操作 */ @Controller public class NewresumeController { /* * spring自动扫描注入bean */ @Autowired public NewresumeService newresumeservice; /* *用于插入用户输入的基本信息 */ @RequestMapping("/basic") /* * basicinfo:用于接收用户输入表单的数据 * request:用于接收隐藏表单数据 * session:传值 */ public String insertbasic(Basic_info basicinfo,HttpServletRequest request, HttpSession session){ String ret=null; //接收隐藏表单hidden的值 int userid = Integer.parseInt(request.getParameter("Userid")); //将userid赋值给basicinfo的Userid basicinfo.setUserId(userid); session.setAttribute("loginuser", userid); try { //插入用户的基本信息 newresumeservice.insertbasic(basicinfo); ret="Educational"; } catch (Exception e) { System.out.println(e); ret ="error"; } return ret; } /* * 用于插入用户输入的教育经历信息 */ @RequestMapping("/addEducational") /* * 三个参数的作用同上个方法 */ public String addEducational(Educational_info edu,HttpServletRequest request, HttpSession session){ String ret=null; int userid = Integer.parseInt(request.getParameter("Userid")); edu.setUserid(userid); session.setAttribute("loginuser", userid); try { //添加教育信息,可以添加多次多条 newresumeservice.addEducational(edu); ret="addEsuccess"; } catch (Exception e) { System.out.println(e); ret ="error"; } return ret; } /* * 用于插入用户输入的工作经历信息 */ @RequestMapping("/addWork") /* * 三个参数的作用同上 */ public String addWork(Work_info work,HttpServletRequest request, HttpSession session){ String ret=null; int userid = Integer.parseInt(request.getParameter("Userid")); work.setUserid(userid); session.setAttribute("loginuser", userid); try { //添加工作经验 newresumeservice.addWork(work); ret="addWsuccess"; } catch (Exception e) { System.out.println(e); ret ="error"; } return ret; } /* * 用于插入用户自我介绍 */ @RequestMapping("/addIntroduce") /* * 由于用户的自我信息是在Basic_info表中,所以这里是update而不是insert */ public String addIntroduce(Basic_info intro,HttpServletRequest request, HttpSession session){ String ret=null; int userid = Integer.parseInt(request.getParameter("Userid")); intro.setUserId(userid); session.setAttribute("loginuser", userid); try { //添加自我介绍信息 newresumeservice.addIntroduce(intro); ret="addIsuccess"; } catch (Exception e) { System.out.println(e); ret ="error"; } return ret; } /* * 用于下载简历 */ @RequestMapping("/download") public String preview(HttpServletRequest request, HttpSession session){ String ret=null; //获取该用户的id int userid = Integer.parseInt(request.getParameter("Userid")); session.setAttribute("loginuser", userid); try { //查找基础信息 List<Basic_info> basic_info = newresumeservice.selectBasic_info(userid); //查找教育信息 List<Educational_info> educational_info = newresumeservice.selectEducational_info(userid); //查找工作信息 List<Work_info> work_info = newresumeservice.selectWork_info(userid); //调用工具类,根据模板ftl文件生成word文档 WordGenerator wordGenerator = new WordGenerator(); wordGenerator.createDoc(basic_info, educational_info,work_info); ret="over"; } catch (Exception e) { System.out.println(e); ret ="error"; } return ret; } }
Service 层是被 Controller 调用,然后调用 mapper 层进行数据处理的中间层,与SSH框架中的 Service 层的作用相同。本次实验的 Service 层都放在 com.resume.service 包下。
UserService 接口被 UserController 调用,然后其实现类 UserServiceImpl 去调用 userMapper 层的相关方法并返回结果。 UserService 具体代码:
package com.resume.service; import com.resume.model.User_info; public interface UserService { User_info login(String Name); }
UserServiceImpl 具体代码:
package com.resume.service; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import com.resume.mapper.UserMapper; import com.resume.model.User_info; /** * 将当前类注释为一个 Spring 的 bean **/ @Service @Transactional public class UserServiceImpl implements UserService{ //自动扫描注入 @Autowired public UserMapper usermapper; //重写方法 @Override public User_info login(String Name) { return usermapper.login(Name); } }
NewresumeService 接口被 NewresumeController 调用,然后其实现类 NewresumeServiceImpl 调用 NewresumeMapper 的相关方法并返回结果。NewresumeService 的具体代码如下:
package com.resume.service; import java.util.List; import com.resume.model.Basic_info; import com.resume.model.Educational_info; import com.resume.model.Work_info; /** * * NewresumeService接口 * service层的接口 * */ public interface NewresumeService { void insertbasic(Basic_info basicinfo); void addEducational(Educational_info edu); void addWork(Work_info work); void addIntroduce(Basic_info intro); List<Basic_info> selectBasic_info(int userid); List<Educational_info> selectEducational_info(int userid); List<Work_info> selectWork_info(int userid); }
NewresumeServiceImpl的具体代码:
package com.resume.service; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.transaction.annotation.Transactional; import com.resume.mapper.NewresumeMapper; import com.resume.model.Basic_info; import com.resume.model.Educational_info; import com.resume.model.Work_info; /** * 将当前类注释为一个 Spring 的 bean **/ @Service @Transactional public class NewresumeServiceImpl implements NewresumeService{ //通过自动扫描注入Bean @Autowired public NewresumeMapper newresumeMapper; //重写方法 @Override public void insertbasic(Basic_info basicinfo) { newresumeMapper.insertbasic(basicinfo); } @Override public void addEducational(Educational_info edu) { newresumeMapper.addEducational(edu); } @Override public void addWork(Work_info work) { newresumeMapper.addWork(work); } @Override public void addIntroduce(Basic_info intro) { newresumeMapper.addIntroduce(intro); } @Override public List<Basic_info> selectBasic_info(int userid) { return newresumeMapper.selectBasic_info(userid); } @Override public List<Educational_info> selectEducational_info(int userid) { return newresumeMapper.selectEducational_info(userid); } @Override public List<Work_info> selectWork_info(int userid) { return newresumeMapper.selectWork_info(userid); } }
Mapper 层类似与 SSH 框架中的 Dao 层,但是与 SSH 框架不同的是,SSM 框架将处理数据的SQL语句配置到了xml文件中,所以 Mapper 层是 Mapper 接口与对应的Mapper.xml文件。本次实验的Mapper层(包括接口和 xml 文件)放在了com.resume.mapper包下。
UserMapper 接口被 UserSerivceImpl 调用,UserMapper.xml 是与 UserMapper 接口中方法对应的SQL语句。接口中的方法名要和 xml 文件中的id属性对应。
UserMapper 的具体代码如下:
package com.resume.mapper; /** * mapper层相当于SSH中的dao层 */ import com.resume.model.User_info; public interface UserMapper { //登录查询 public User_info login(String Name); }
在 mapper.xml 文件中,如果有需要返回结果的sql语句,比如 select 语句等,还需要配置自定义结果集。如 UserMapper.xml :
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.resume.mapper.UserMapper"> <!-- 自定义结果集 --> <resultMap type="User_info" id="userResultMap"> <id property="id" column="id" /> <result property="Name" column="Name" /> <result property="Password" column="Password" /> </resultMap> <!-- 登录查询 --> <select id="login" parameterType="User_info" resultMap="userResultMap"> select * from user_info where name=#{Name} </select> </mapper>
对传入 mapper 层的参数,在 xml 文件中我们需要使用表达式 ${参数名}
来进行调用。
NewresumeMapper、NewresumeMapper.xml 与前面的 UserMapper、UserMapper.xml 是相同的对应关系。NewresumeMapper 接口的具体代码如下:
package com.resume.mapper; import java.util.List; import com.resume.model.Basic_info; import com.resume.model.Educational_info; import com.resume.model.Work_info; /** * 新建一个简历 * 导出简历时查询的数据 */ public interface NewresumeMapper { //插入基础信息 public void insertbasic(Basic_info basicinfo); //添加教育信息 public void addEducational(Educational_info edu); //添加工作信息 public void addWork(Work_info work); //添加自我介绍 public void addIntroduce(Basic_info intro); //查找基本信息 public List<Basic_info> selectBasic_info(int userid); //查找教育信息 public List<Educational_info> selectEducational_info(int userid); //查找工作信息 public List<Work_info> selectWork_info(int userid); }
NewresumeMapper.xml 的具体代码如下:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.resume.mapper.NewresumeMapper"> <!-- 自定义结果集 --> <resultMap type="Basic_info" id="basicResultMap"> <id property="ID" column="ID" /> <result property="Name" column="Name" /> <result property="Gender" column="Gender" /> <result property="Age" column="Age" /> <result property="Address" column="Address" /> <result property="Email" column="Email" /> <result property="Tel" column="Tel" /> <result property="School" column="School" /> <result property="Introduce" column="Introduce" /> </resultMap> <resultMap type="Educational_info" id="eduResultMap"> <id property="Eduid" column="Eduid" /> <result property="School" column="School" /> <result property="Major" column="Major" /> <result property="Education" column="Education" /> <result property="Graducation" column="Graducation" /> </resultMap> <resultMap type="Work_info" id="workResultMap"> <id property="Workid" column="Workid" /> <result property="Company" column="Company" /> <result property="Position" column="Position" /> <result property="Duty" column="Duty" /> <result property="Depature" column="Depature" /> </resultMap> <!-- 插入基本信息(除自我介绍) --> <insert id="insertbasic" parameterType="Basic_info" useGeneratedKeys="true" keyProperty="id"> insert into basic_info(name,gender,age,address,email,tel,school,userId) values(#{name},#{gender},#{age},#{address},#{email},#{tel},#{school},#{userId}) </insert> <!-- 插入教育信息 --> <insert id="addEducational" parameterType="Educational_info" useGeneratedKeys="true" keyProperty="Eduid"> insert into educational_info(school,major,education,graduation,userid) values(#{School},#{Major},#{Education},#{Graduation},#{Userid}) </insert> <!-- 插入工作经历信息 --> <insert id="addWork" parameterType="Work_info" useGeneratedKeys="true" keyProperty="Workid"> insert into work_info(company,position,duty,departure,userid) values(#{Company},#{Position},#{Duty},#{Departure},#{Userid}) </insert> <!-- 插入自我介绍,因为放在已有记录下,所以用update语句 --> <update id="addIntroduce" parameterType="Basic_info" > update basic_info set introduce=#{Introduce} where UserId=#{UserId} </update> <!-- 查询基础信息 --> <select id="selectBasic_info" parameterType="Basic_info" resultMap="basicResultMap"> select * from basic_info where userId=#{userid} </select> <!-- 查询教育信息 --> <select id="selectEducational_info" parameterType="Educational_info" resultMap="eduResultMap"> select * from educational_info where userid=#{userid} </select> <!-- 查询工作经历信息 --> <select id="selectWork_info" parameterType="Work_info" resultMap="workResultMap"> select * from work_info where userid=#{userid} </select> </mapper>
这个工具类是用来让简历根据我们预先写好的模板文件 muban.ftl,生成一个 word 文档并在指定位置输出。使用的是 freemarker 模板引擎,freemarker 是一种基于模板和要改变的数据来生成要输出的文本,输出的文本不仅仅能是 word,还能是 HTML,电子邮件等等格式。WordGenerator 工具类放在 com.resume.tools 包下。
WordGenerator 工具类的作用已经在前面介绍了,接下来就让我们看看它的具体代码吧:
package com.resume.tools; import java.io.BufferedWriter; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.io.OutputStreamWriter; import java.io.Writer; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; import com.resume.model.Basic_info; import com.resume.model.Educational_info; import com.resume.model.Work_info; import freemarker.template.Configuration; import freemarker.template.Template; import freemarker.template.TemplateException; public class WordGenerator { private Configuration configuration = null; public WordGenerator() { configuration = new Configuration(); //设置编码格式 configuration.setDefaultEncoding("UTF-8"); } // 3个参数分别是:基础信息、教育信息和工作经历,通过数据库查找所得 public void createDoc(List<Basic_info> basic_info, List<Educational_info> educational_info, List<Work_info> work_info) { String modelName = "muban.ftl";//模板路径 String exportFilePath = "/home/shiyanlou/outFile.doc";//文件导出路径,为doc格式 Template t = null; // 1、导入模板 configuration.setClassForTemplateLoading(this.getClass(), "/com/resume/modelPath"); try { // modelName为要装载的模板,是ftl格式 t = configuration.getTemplate(modelName,"UTF-8"); } catch (IOException e) { e.printStackTrace(); } // 2、打包数据--每次导出的word文件模板不同,打包数据的方法要单独写 Map<String, Object> dataMap = new HashMap<String, Object>(); getData(basic_info,educational_info,work_info,dataMap); // 3、导出文件 // 输出文档路径及名称 File outFile = new File(exportFilePath); Writer out = null; try { //输出文件 out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(outFile), "utf-8")); } catch (Exception e1) { e1.printStackTrace(); } try { t.process(dataMap, out); } catch (TemplateException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } //把数据打包成map;dataMap里存放的数据Key值要与模板中的参数相对应 private void getData(List<Basic_info> basic_info, List<Educational_info> educational_info, List<Work_info> work_info,Map<String, Object> dataMap) { dataMap.put("Name", basic_info.get(0).getName());//说明:模板文件中有${Name}与之对应,下同 dataMap.put("Age", basic_info.get(0).getAge()); dataMap.put("Gender", basic_info.get(0).getGender()); dataMap.put("School", basic_info.get(0).getSchool()); dataMap.put("Address", basic_info.get(0).getAddress()); dataMap.put("Introduce", basic_info.get(0).getIntroduce()); dataMap.put("Email", basic_info.get(0).getEmail()); dataMap.put("Tel", basic_info.get(0).getTel()); dataMap.put("educational_info", educational_info); dataMap.put("work_info", work_info); //由于word中包含两个table,table1对应教育信息,table2对应工作经历 List<Educational_info> _table1 = new ArrayList<Educational_info>(); //循环将所有信息放入Educational_info的list中 for (int i = 0; i < educational_info.size(); i++) { Educational_info _t1 = new Educational_info(); _t1.setSchool(educational_info.get(i).getSchool()); _t1.setEducation(educational_info.get(i).getEducation()); _t1.setGraduation(educational_info.get(i).getGraduation()); _t1.setMajor(educational_info.get(i).getMajor()); _table1.add(_t1); } //将list放入dataMap dataMap.put("table1", _table1); //table2过程同table1 List<Work_info> _table2 = new ArrayList<Work_info>(); for (int i = 0; i < work_info.size(); i++) { Work_info _t2 = new Work_info(); _t2.setCompany(work_info.get(i).getCompany()); _t2.setDeparture(work_info.get(i).getDeparture()); _t2.setDuty(work_info.get(i).getDuty()); _t2.setPosition(work_info.get(i).getPosition()); _table2.add(_t2); } dataMap.put("table2", _table2); } }
常见的创建 ftl 文件的步骤:首先使用 word 或者其他的软件新建一个 word 文档,然后在在这个 word 文档中调整格式,包括字体的大小等等。在需要动态变化的地方使用 ${参数名}
表达式来标记。本次实验所用的模板样式如下图(表格中的表达式需要修改):
然后将文档另存为 xml 格式:
存为 xml 格式后,在使用 EditPlus 等编辑软件打开,在这里修改表格中的表达式,即在 ftl 文件中遍历 list 并循环输出:
图中红色边框的地方就是需要修改的地方。修改完成后另存为 ftl 文件就行了。
本次实验所需的模板文件可以通过命令:
wget http://labfile.oss.aliyuncs.com/courses/875/muban.ftl
下载到环境中,然后将其复制放在项目的 com.resune.modelPath 包下。
配置文件包括 web.xml、spring-mvc.xml、mybatis-config.xml、applicationContext.xml。其中 web.xml 在 WEB-INF 目录下,其余三个在src目录下。每个配置文件的具体代码如下。web.xml:
<?xml version="1.0" encoding="UTF-8"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>SSMTest</display-name> <!-- 配置 Spring 核心监听器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 指定 Spring 的配置文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:applicationContext.xml</param-value> </context-param> <!-- 定义 Spring MVC 前端控制器 --> <servlet> <servlet-name>springMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <!-- 为 DispatcherServlet 建立映射 --> <servlet-mapping> <servlet-name>springMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener> <!-- 编码过滤器 --> <filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> <init-param> <param-name>forceEncoding</param-name> <param-value>true</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 设置首页 --> <welcome-file-list> <welcome-file>login.jsp</welcome-file> </welcome-file-list> </web-app>
spring-mvc.xml 类似与SSH框架中的 struts.xml,但是相比后者繁琐的配置,前者明显要更加简洁。spring-mvc.xml:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.2.xsd"> <!-- 自动扫描该包,Spring MVC 会将包下用 @Controller 注解的类注册为 Spring 的 controller --> <context:component-scan base-package="com.resume.controller" /> <!-- 设置默认配置方案 --> <mvc:annotation-driven /> <!-- 视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <!-- 执行完action后会返回xxx,xxx会和下面的property组合,形成跳转页面的路径 --> <property name="prefix" value="" /> <property name="suffix" value=".jsp" /> </bean> </beans>
mybatis-config.xml 通过扫描 mapper.xml 和实体类JavaBean,使mapper.xml 文件中的SQL语句执行。mybatis-config.xml:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration> <!-- 为JavaBean起类别名 --> <typeAliases> <package name="com.resume.model" /> </typeAliases> <!-- 通过 mapper 接口包加载整个包的映射文件 --> <mappers> <package name="com/resume/mapper" /> </mappers> </configuration>
applicationContext.xml 是 spring 配置文件,在这里将SSM框架整合。applicationContext.xml:
<?xml version="1.0" encoding="UTF-8"?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd"> <!-- 自动扫描有 Spring 相关注解的类,并把这些类注册为 bean --> <context:component-scan base-package="com.resume" /> <!-- 配置数据源 --> <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"> <property name="driverClassName" value="com.mysql.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/resume" /> <property name="username" value="root" /> <property name="password" value="" /> </bean> <!-- MyBatis 的 SqlSession 的工厂,并引用数据源,扫描 MyBatis 的配置文件 --> <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="dataSource"></property> <property name="configLocation" value="classpath:mybatis-config.xml" /> </bean> <!-- MyBatis 自动扫描加载 Sql 映射文件/接口 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.resume.mapper"></property> <property name="sqlSessionFactory" ref="sqlSessionFactory"></property> </bean> <!-- JDBC 事务管理器 --> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"></property> </bean> <!-- 启用支持 annotation 注解方式事务管理 --> <tx:annotation-driven transaction-manager="txManager" /> </beans>
至此,所有的开发和准备结束,接下来就让我们来运行测试一下。
在运行前,我们需要先将项目部署到Tomcat服务器下,然后启动服务器。或者直接右击项目名,选择 Run As-->Run On Server,然后 Eclipse 会自动识别Tomcat 7.0 服务器,点击finish,静静的等待服务器启动。在启动的过程中可能会遇到启动的时间不足的问题,你只需要在下方的Server栏中双击Tomcat 7.0 服务器。
然后点击右上角的 Timeouts
按钮,将启动时间调整一下,保存退出就行了。
用户的登录信息需要先在数据库中插入记录。使用命令:
INSERT INTO user_info(name,password) values('shiyanlou','123456');
可以插入名为 shiyanlou,密码为 123456 的用户。(主键自动递增,无需手动添加)
导出的文档在主文件夹下,名为 outFile.doc 。由于在线环境无法发开 doc 文档,所以大家可以将文档放到 code 文件夹下,然后点击右方的下载代码,就可以将文档下载到本地,将文件解压后就可以查看了。
在本次实验中,我们用 SSM 框架实现了用户登录、简历的录入,用 freemarker+ftl 模板文件生成了简历。在此过程中,能帮助大家提高对SSM框架整合的理解,也对 freemarker 操作文档有一定的了解。