spring配置线程池报空指针

[qq_34785292]

Spring.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:cache="http://www.springframework.org/schema/cache"
	xsi:schemaLocation="http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.2.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">
 
	<!-- 导入mybatis -->
	<import resource="classpath:spring-mybatis.xml"/>
	<!-- 添加线程池 -->
	<import resource="classpath:spring-thread.xml"/>
     
</beans>

spring-thread.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:cache="http://www.springframework.org/schema/cache" xmlns:task="http://www.springframework.org/schema/task"
	xsi:schemaLocation="http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.2.xsd
		http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-4.0.xsd
		http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
		http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

	 <!-- 异步线程池 -->  
    <bean id="taskExecutor"  
        class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">  
        <!-- 核心线程数 -->  
        <property name="corePoolSize" value="10" />  
        <!-- 最大线程数 -->  
        <property name="maxPoolSize" value="100" />  
        <!-- 队列最大长度 >=mainExecutor.maxSize -->  
        <property name="queueCapacity" value="1000" />  
        <!-- 线程池维护线程所允许的空闲时间 -->  
        <property name="keepAliveSeconds" value="300" />  
        <!-- 线程池对拒绝任务(无线程可用)的处理策略 -->  
        <property name="rejectedExecutionHandler">  
            <bean class="java.util.concurrent.ThreadPoolExecutor$CallerRunsPolicy" />  
        </property>  
    </bean>  
</beans>

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>zhibing_mybatis</display-name>
  
  <listener>
		<description>spring listener</description>
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
	<!-- 防止spring内存溢出监听器 -->
	<listener>
		<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
	</listener>
  	<context-param>
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath*:spring.xml</param-value>
  	</context-param>
	<context-param>
		<param-name>spring.profiles.active</param-name>
		<param-value>production</param-value>
	</context-param>
	<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>
	</filter>
	<filter-mapping>
		<filter-name>encodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<servlet>
		<description>spring mvc servlet</description>
		<servlet-name>springmvc</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<description>springmvc config</description>
			<param-name>contextConfigLocation</param-name>
			<param-value>classpath*:spring-mvc.xml</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springmvc</servlet-name>
		<url-pattern>*.app</url-pattern>
	</servlet-mapping>

    <welcome-file-list>
    	<welcome-file>index.html</welcome-file>
    	<welcome-file>index.htm</welcome-file>
    	<welcome-file>index.jsp</welcome-file>
  	</welcome-file-list>
</web-app>

java.java

public class java{
	@Resource(name="taskExecutor")
    private TaskExecutor taskExecutor;// 线程池 
public TaskExecutor getTaskExecutor() {
		return taskExecutor;
	}
    public void setTaskExecutor(TaskExecutor taskExecutor) {
		this.taskExecutor = taskExecutor;
	}
public void addThread(){
		taskExecutor.execute(new Runnable() {
			
			@Override
			public void run() {
				System.out.println("啦啦啦啦");
				
			}
		});
}

结果:
java.lang.NullPointerException

[I,Frankenstein]

我项目中用的跟你一样配置的线程池，我刚刚试了下，没有像你说的空指针。 那么你是怎么调用的呢？我是在定时任务里面调用的。

[zhangle1985]

我也报空指针，你是怎么解决的？