HTTP 406错误发生升级到Spring MVC的4.1使用JSON

Question

升级到Spring MVC的4.1.1后，当我使用JSON，它会出现HTTP 406错误。

的pom.xml

<!-- JSON Support --> 
<dependency> 
    <groupId>org.codehaus.jackson</groupId> 
    <artifactId>jackson-core-asl</artifactId> 
    <version>1.9.13</version> 
</dependency> 
<dependency> 
    <groupId>org.codehaus.jackson</groupId> 
    <artifactId>jackson-mapper-asl</artifactId> 
    <version>1.9.13</version> 
</dependency> 

Controller.java

@RequestMapping(value = "/login.action", method = RequestMethod.POST) 
public @ResponseBody HashMap<String, Boolean> loginAction(
     @RequestParam(value="username", required=true) String username, 
     @RequestParam(value="password", required=true) String password, 
     HttpServletRequest request, 
     HttpSession session, 
     Model model) { 
    String ipAddress = request.getRemoteAddr(); 
    HashMap<String, Boolean> result = getLoginResult(username, password); 
    logger.info(String.format("User: [Username=%s] tried to log in at %s", new Object[] {username, ipAddress})); 
    if (result.get("isSuccessful")) { 
     getSession(request, session, this.user); 
    } 
    return result; 
} 

的login.jsp

<script type="text/javascript"> 
    function doLoginAction(username, password) { 
     var postData = 'username=' + username + '&password=' + password; 
     $.ajax({ 
       type: 'POST', 
       url: '<c:url value="/accounts/login.action" />', 
       data: postData, 
       dataType: 'JSON', 
       success: function(result){ 
        console.log(result); 
        return processLoginResult(result); 
      } 
     }); 
    } 
</script> 

日志消息将出正常放置在控制台上。 而且代码在Spring MVC 4.0.5中正常工作。

你知道如何解决它吗？非常感谢。

Answer 1

升级杰克逊的版本应该可以解决这个问题。

<dependency> 
    <groupId>com.fasterxml.jackson.core</groupId> 
    <artifactId>jackson-databind</artifactId> 
    <version>2.4.3</version> 
</dependency> 

查看Spring migration wiki on github。