Spring Bean高级配置方法大全
案例一：组合配置
（1）枚举类型的属性
（2）使用构造函数赋值
（3）property结点下面用bean作为value
<bean id="jacksonMapper" class="org...Jackson2ObjectMapperFactoryBean">
<property name="objectMapper">
<!-- bean标签嵌套在property标签内部 -->
<bean class="com.fasterxml.jackson.databind.ObjectMapper">
<property name="serializationInclusion">
<!-- 枚举类型值 -->
<value type="com...JsonInclude.Include">NON_EMPTY</value>
</property>
<property name="dateFormat">
<bean class="java.text.SimpleDateFormat">
<!-- 构造函数 -->
<constructor-arg type="java.lang.String" value="yyyy-MM-dd" />
</bean>
</property>
</bean>
</property>
<property name="featuresToDisable">
<array>
<!-- 注入静态常量 -->
<util:constant static-field="com...DeserializationFeature.UNKNOWN_PROP" />
</array>
</property>
</bean>
包含枚举类型属性：
<property name="serializationInclusion">
<value type="com.fasterxml.jackson.annotation.JsonInclude.Include">NON_EMPTY</value>
</property>
public enum Include {
ALWAYS,
NON_NULL,
NON_EMPTY;
}
案例二：指定 init-method和destroy-method
<bean id="database" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
</bean>
案例三：使用 p-schema 给属性赋值
<bean id="multipartResolver" class="org.spring..CommonsMultipartResolver" p:defaultEncoding="utf-8" >
<property name="maxUploadSize" value="52428800"/>
<property name="maxInMemorySize" value="52428800"/>
</bean>
需要声明如下：（红色部分）
<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:mvc="http://www.springframework.org/schema/mvc"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:aop="http://www.springframework.org/schema/aop"
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-3.2.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.2.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
案例四：（1）使用 factory-bean & factory-method 构造对象
<!-- httpclient对象构建器 -->
<bean id="httpClientBuilder" class="org.apache.http.impl.client.HttpClientBuilder">
</bean>
<bean id="httpClient" class="org...client.CloseableHttpClient"
factory-bean="httpClientBuilder" factory-method="build" destroy-method="close">
</bean>
案例五：使用scope=protoype定义bean，每次使用都创建新对象
<!-- 每次都会创建一个 -->
<bean id="httpClient" class="org.zollty.client.HttpClient" scope="prototype">
</bean>
案例六：混合构造函数和setter给属性赋值
<bean class="com.zollty.lightning.push.HttpConnectionMonitorThread">
<constructor-arg index="0" ref="httpClientConnectionManager" />
<property name="connectionIdleTimeout" value="${idle.timeout}"/>
</bean>
案例七：给Properties类型的属性赋值
<bean id="exceptionResolver" class="org...SimpleMappingResolver">
<property name="exceptionMappings">
<props>
<prop key="java.lang.RuntimeException">exception/exception</prop>
<prop key="java.lang.Exception">exception/exception</prop>
</props>
</property>
</bean>
private Properties exceptionMappings;
public void setExceptionMappings(Properties mappings) {
this.exceptionMappings = mappings;
}
案例八：指定 在当前bean初始化之前，先初始化 其非直接依赖的beans
<
bean
id
=
"lifecycle"
class
=
"org.apache.shiro.spring.LifecycleBeanPostProcessor"
/>
<!-- 使用depends-on，指定在当前bean初始化之前，先初始化lifecycle
，注意当前bean实际上并没有注入lifecycle对象 -->
<
bean
class
=
"org...DefaultAdvisorAutoProxyCreator"
depends-on
=
"lifecycleBeanPostProcessor"
>
<
property
name
=
"proxyTargetClass"
value
=
"true"
/>
</
bean
>
备注：如果有多个非直接依赖的beans，则在depends-on可以用逗号分隔开。
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文章和留言都翻到11页了 没有OOM
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朋友，翻页到11页，及以后，会出现OOM，无法访问
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搞个gitee的项目
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版本号是多少，你可以下载哪个代码仓库，jdk选1.8 直接跑就行
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