Springmvc 406 状态码 / Could not find acceptable representation

 

查阅资料,大都表示需要 加入依赖的jar，jackson-core-asl-1.9.12.jar，jackson-mapper-asl-1.9.12.jar问题解决。

经测试不是这个错误不是必须依赖这两个 jar。

如下配置正常返回数据

 

pom.xml

 

        

        
            com.fasterxml.jackson.core
            jackson-core
            ${jackson.version}
        
        
            com.fasterxml.jackson.core
            jackson-databind
            ${jackson.version}
        
        
            com.fasterxml.jackson.core
            jackson-annotations
            ${jackson.version}
        

 

 

springMvc.xml 中

 

 

    
        
            
                
                    
                        text/html;charset=utf-8
                        text/xml;charset=utf-8
                        text/plain;
                        text/json;charset=utf-8
                        application/json;charset=UTF-8
                    
                
            
            
        
    

 

 

 

 

 

Controller中 

 

  @RequestMapping(value = "checkLogin", method = RequestMethod.POST)
    @ResponseBody
    public ResultDto checkLogin(String name, String password, int role) {

        return loginService.checkLogin(name, password, role);
    }

 

 

 

-------------------------------------------------------------------------------

ResultDTO对象缺少部分 get 方法导致 格式化 JSON 对象时出错。

移除 上面2个 jar 与返回对象的 get 方法进行测试，报406错误码。

debug 代码 于 ServletInvocableHandlerMethod.class 中捕获异常 "Could not find acceptable representation"

添加 get 方法后测试正常返回该对象的 JSON 字符

 

 

public class ResultDto {

    private boolean succeed;
    private Object data;

    public ResultDto(boolean succeed) {
        this.succeed = succeed;
    }

    public ResultDto(boolean succeed, Object data) {
        this.succeed = succeed;
        this.data = data;
    }

/*
    public boolean isSucceed() {
        return succeed;
    }

    public Object getData() {
        return data;
    }
*/

    public void setSucceed(boolean succeed) {
        this.succeed = succeed;
    }

    public void setData(Object data) {
        this.data = data;
    }
}