Mongodb 无法初始化类org.springframework.web.context.request.ServletRequestAttributes

我正在尝试使用Spring4创建一个Rest控制器。我还使用mongodb作为数据库，使用Tomcat7作为Web服务器。 当我尝试提交任何Rest请求时，收到此错误消息：

    type Exception report

message Servlet execution threw an exception

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: Servlet execution threw an exception
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
root cause

java.lang.NoClassDefFoundError: Could not initialize class org.springframework.web.context.request.ServletRequestAttributes
    org.springframework.web.servlet.FrameworkServlet.buildRequestAttributes(FrameworkServlet.java:996)
    org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:923)
    org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:822)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
    org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:807)
    javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
    org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.56 logs.

我正在pom.xml中使用这些版本

<!-- Web -->
    <jsp.version>2.2</jsp.version>
    <jstl.version>1.2</jstl.version>
    <servlet.version>2.5</servlet.version>

    <!-- Spring -->
    <spring-framework.version>4.0.0.RELEASE</spring-framework.version>

    <!-- spring-web -->
    <spring-web.version>4.1.2.RELEASE</spring-web.version>

    <!-- Spring data for MongoDB -->
    <springframework.data-version>1.6.1.RELEASE</springframework.data-version>

你能帮帮我吗？

---

提前谢谢你

我也遇到过类似的问题，我相信通过多种方法解决了这个问题：

• 确保servlet.xml中有以下两行，并按此顺序排列（这意味着必须在默认servlet处理程序之前列出注释驱动）

*任何等效的viewResolver bean都可以

• 请确保这是在您的web.xml中：

  <listener>
      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  

  
  org.springframework.web.context.ContextLoaderListener
  

• 我知道你没有提到你得到的东西会产生什么。例如：我在@RequestMapping

  products=MediaType.APPLICATION\u JSON\u VALUE

• 最后，我不知道为什么，但每次添加新的控制器映射时，我都需要运行Maven安装生命周期，否则它就看不到新的映射。这个问题我还在想办法解决

我是这样修复的：

@RequestMapping(value = "/user", method = RequestMethod.GET, produces = "application/json")
@ResponseBody
public User  findUsername(@RequestParam("username") String username) {
    logger.info("Searcing for user using his username");
    return userServices.findUserByUsername(username);
}

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>

@RequestMapping(value = "/user", method = RequestMethod.GET, produces = "application/json")
@ResponseBody
public User  findUsername(@RequestParam("username") String username) {
    logger.info("Searcing for user using his username");
    return userServices.findUserByUsername(username);
}