java - Spring REST Web 服务 appContext 失败

Question

我正在尝试使用 Spring 创建 REST Web 服务。

我有一个 Controller ，一个 appContext。

Controller :

@Controller
public class RestController {

@RequestMapping(method=RequestMethod.POST, value="service/{url}......<params>) 
//some method here

//some logic here

}

和应用上下文:

<?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"
        xsi:schemaLocation="
                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">

        <context:component-scan base-package="spring.rest.controller" />

        <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
        <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />

</beans>

我正在使用 Tomcat 7，在尝试启动时出现异常:

[13:02] ERROR ContextLoader () - Context initialization failed
java.lang.NoClassDefFoundError: org/springframework/expression/PropertyAccessor
    at org.springframework.context.support.AbstractApplicationContext.prepareBeanFactory(AbstractApplicationContext.java:567)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:468)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassNotFoundException: org.springframework.expression.PropertyAccessor
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
    ... 15 more
Jul 23, 2013 1:02:21 PM org.apache.catalina.core.StandardContext listenerStart
SEVERE: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
java.lang.NoClassDefFoundError: org/springframework/expression/PropertyAccessor
    at org.springframework.context.support.AbstractApplicationContext.prepareBeanFactory(AbstractApplicationContext.java:567)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:468)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:106)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4939)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5434)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1559)
    at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1549)
    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
    at java.util.concurrent.FutureTask.run(FutureTask.java:166)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:722)
Caused by: java.lang.ClassNotFoundException: org.springframework.expression.PropertyAccessor
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1714)
    at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1559)
    ... 15 more

我使用的库 - Spring beans、核心、上下文、web、webmvc、安全核心、oxm。附言以前从未使用过 Spring，所以我不知道哪里出了问题。

有什么建议吗？

Answer 1

你错过了 Spring expression JAR file .

由于您已经拥有 Spring 核心 JAR 文件，如果使用项目构建管理器(例如 Maven)，您应该拥有表达式 JAR 文件因为 spring-expression 是 spring-core 的依赖项。在这种情况下，可能是部署表达式 JAR 文件时出现问题(它在您的本地 Maven 存储库中不存在或已损坏)。参见 here如何刷新本地 Maven 存储库。

如果您没有使用 Maven 等构建管理器，则需要手动下载 JAR 文件，使版本与您现有的 Spring JAR 文件相匹配。