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Salesforce中通过SOAP API和Metadata API开发java的web server服务

1。下载Salesforce平台中WSDL文件

在Salesforce中创建了自己需要用到的对象后，我们想要在别的应用中读写纪录到对象中，首先需要的是自己Salesforce平台的权限通过。登陆自己的Salesforce，下载WSDL文件。

依次点击右上角你的名字中设置--》应用程序设置--》发展--》API。

如果你的是英文，那么依次点击 Your Name --》 Setup --》 App Setup --》 Develop --》 API。

到了如下页面后，下载图中的三个WSDL文件。

Salesforce中通过SOAP API和Metadata API开发java的web server服务

2.下载并构建WSC Jar，然后把对应的wsdl文件编译成对应jar

这里官方的方法是下载github中的Salesforces的WSC项目 https://github.com/forcedotcom/wsc 在github中也有WSC把wsdl文件生成jar的教程，但是当我执行到 mvn clean package 清理WSC项目的时候便进行不下去了，是因为下载某些包的时候链接是外网，尽管有FQ，但还是更新失败，而且速度很慢，最后只有失败告终。于是我去寻找另外的方法。究其原理，不过也就是为了获取一个WSC的jar，然后通过cmd的命令来构建wsdl文件的jar文件，然后把这些jar文件引入到java项目中，便可以读写Salesforce中的对象。

在这个链接  <a title="http://code.google.com/p/sfdc-wsc/downloads/list" href="http://code.google.com/p/sfdc-wsc/downloads/list">http://code.google.com/p/sfdc-wsc/downloads/list</a> 中下载wsc的jar文件。其中我下载的是wsc-23.jar文件。如果打不开网址，需要翻一下墙，下载如果不能继续，试下右键用迅雷下载，我的就是用迅雷下载的，如果有会员，那最多十几秒的事情。

下载完成后，便是把wsdl文件编译成对应jar。这里我用windows系统。把刚才下载的jar包和3个wsdl文件放在同一个文件夹中，打开cmd黑色的命令窗，先用cd命令进入到对应的文件夹中。接下来cmd命令窗口中输入如下：

java -classpath wsc-23.jar com.sforce.ws.tools.wsdlc enterprise.wsdl enterprise.jar  java -classpath wsc-23.jar com.sforce.ws.tools.wsdlc partner.wsdl partner.jar  java -classpath wsc-23.jar com.sforce.ws.tools.wsdlc metadata.wsdl metadata.jar

这里需要先安装java的jdk，本来是开发java的程序来读写Salesforce的对象和数据，我就当大家都已经装好了jdk的了。如果执行没有问题，那么你的文件夹应该多了3个jar文件，最后整个文件夹便变成：

Salesforce中通过SOAP API和Metadata API开发java的web server服务

3.创建程序并引用外部jar文件

准备就绪，接下来想开发任何程序都可以了，web，server，安卓（安卓和IOS有另外的SDK，没必要用这种方法，个人理解）等等都行了。

创建java程序和引用jar外部包我就不解释，要应用的jar就是上图文件夹中的4个jar，对，wsc-23.jar也要

package wsc;  import com.sforce.soap.enterprise.Connector; import com.sforce.soap.enterprise.DeleteResult; import com.sforce.soap.enterprise.EnterpriseConnection; import com.sforce.soap.enterprise.Error; import com.sforce.soap.enterprise.QueryResult; import com.sforce.soap.enterprise.SaveResult; import com.sforce.soap.enterprise.sobject.Account; import com.sforce.soap.enterprise.sobject.Contact; import com.sforce.ws.ConnectionException; import com.sforce.ws.ConnectorConfig;  public class Main {    static final String USERNAME = "YOUR-USERNAME";                   //Salesforce账号中的用户名 static final String PASSWORD = "YOUR-PASSWORD&SECURITY-TOKEN";    //密码，这个密码有点特殊，需要在密码后面加入安全标记   static EnterpriseConnection connection;    public static void main(String[] args) {      ConnectorConfig config = new ConnectorConfig();     config.setUsername(USERNAME);     config.setPassword(PASSWORD);              try {              connection = Connector.newConnection(config);       // 增删改查       queryContacts();       createAccounts();       updateAccounts();       deleteAccounts();                   } catch (ConnectionException e1) {         e1.printStackTrace();     }      }      // queries and displays the 5 newest contacts   private static void queryContacts() {          System.out.println("Querying for the 5 newest Contacts...");          try {               // query for the 5 newest contacts             QueryResult queryResults = connection.query("SELECT Id, FirstName, LastName, Account.Name " +               "FROM Contact WHERE AccountId != NULL ORDER BY CreatedDate DESC LIMIT 5");       if (queryResults.getSize() > 0) {         for (int i=0;i<queryResults.getRecords().length;i++) {           // cast the SObject to a strongly-typed Contact           Contact c = (Contact)queryResults.getRecords()[i];           System.out.println("Id: " + c.getId() + " - Name: "+c.getFirstName()+" "+               c.getLastName()+" - Account: "+c.getAccount().getName());         }       }            } catch (Exception e) {       e.printStackTrace();     }            }      // create 5 test Accounts   private static void createAccounts() {          System.out.println("Creating 5 new test Accounts...");     Account[] records = new Account[5];          try {               // create 5 test accounts       for (int i=0;i<5;i++) {         Account a = new Account();         a.setName("Test Account "+i);         records[i] = a;       }              // create the records in Salesforce.com       SaveResult[] saveResults = connection.create(records);              // check the returned results for any errors       for (int i=0; i< saveResults.length; i++) {         if (saveResults[i].isSuccess()) {           System.out.println(i+". Successfully created record - Id: " + saveResults[i].getId());         } else {           Error[] errors = saveResults[i].getErrors();           for (int j=0; j< errors.length; j++) {             System.out.println("ERROR creating record: " + errors[j].getMessage());           }         }           }            } catch (Exception e) {       e.printStackTrace();     }            }      // updates the 5 newly created Accounts   private static void updateAccounts() {          System.out.println("Update the 5 new test Accounts...");     Account[] records = new Account[5];          try {               QueryResult queryResults = connection.query("SELECT Id, Name FROM Account ORDER BY " +               "CreatedDate DESC LIMIT 5");       if (queryResults.getSize() > 0) {         for (int i=0;i<queryResults.getRecords().length;i++) {           // cast the SObject to a strongly-typed Account           Account a = (Account)queryResults.getRecords()[i];           System.out.println("Updating Id: " + a.getId() + " - Name: "+a.getName());           // modify the name of the Account           a.setName(a.getName()+" -- UPDATED");           records[i] = a;         }       }              // update the records in Salesforce.com       SaveResult[] saveResults = connection.update(records);              // check the returned results for any errors       for (int i=0; i< saveResults.length; i++) {         if (saveResults[i].isSuccess()) {           System.out.println(i+". Successfully updated record - Id: " + saveResults[i].getId());         } else {           Error[] errors = saveResults[i].getErrors();           for (int j=0; j< errors.length; j++) {             System.out.println("ERROR updating record: " + errors[j].getMessage());           }         }           }            } catch (Exception e) {       e.printStackTrace();     }            }      // delete the 5 newly created Account   private static void deleteAccounts() {          System.out.println("Deleting the 5 new test Accounts...");     String[] ids = new String[5];          try {               QueryResult queryResults = connection.query("SELECT Id, Name FROM Account ORDER BY " +               "CreatedDate DESC LIMIT 5");       if (queryResults.getSize() > 0) {         for (int i=0;i<queryResults.getRecords().length;i++) {           // cast the SObject to a strongly-typed Account           Account a = (Account)queryResults.getRecords()[i];           // add the Account Id to the array to be deleted           ids[i] = a.getId();           System.out.println("Deleting Id: " + a.getId() + " - Name: "+a.getName());         }       }              // delete the records in Salesforce.com by passing an array of Ids       DeleteResult[] deleteResults = connection.delete(ids);              // check the results for any errors       for (int i=0; i< deleteResults.length; i++) {         if (deleteResults[i].isSuccess()) {           System.out.println(i+". Successfully deleted record - Id: " + deleteResults[i].getId());         } else {           Error[] errors = deleteResults[i].getErrors();           for (int j=0; j< errors.length; j++) {             System.out.println("ERROR deleting record: " + errors[j].getMessage());           }         }           }            } catch (Exception e) {       e.printStackTrace();     }            }   }