java前后台的交互，尽量详细点哦

Question

我想在前台的ajax里面的success得到这个list怎么做呢

Answer 1

同意楼上说法，在实际开发中Controller层对于JSON数据应该是需要经过封装从而再次返回的。分享一下一个比较简单的封装类

public class Message implements Serializable {

/**
 * 返回结果JSON封装类
 */
private static final long serialVersionUID = 1L;
private boolean           success          = true;
private String            msg              = "成功";
private Object obj;

public Object getObj() {
    return obj;
}

public void setObj(Object obj) {
    this.obj = obj;
}

public Message(boolean success, String msg) {
    super();
    this.success = success;
    this.msg = msg;
}

public boolean isSuccess() {
    return success;
}

public void setSuccess(boolean success) {
    this.success = success;
}

public String getMsg() {
    return msg;
}

public void setMsg(String msg) {
    this.msg = msg;
}

public Message() {
    super();
}

public Message(String msg) {
    super();
    this.msg = msg;
}

}

Controller层的RequestMapping映射器方法返回方法可以为Message 例：

    public Message getAll(){
                Message msg = null;

                //返回结果
                msg.setData(true,list);

    }