java web後臺傳參到前臺中文亂碼問題的解決

一、通過設置response編碼解決

response.setCharacterEncoding("utf-8");

二、設置requestMapping的product屬性解決

@RequestMapping(value = "/login.do",produces = "text/plain;charset=utf-8")

下面附上這裏的具體案例：

@RequestMapping(value = "/login.do",produces = "text/plain;charset=utf-8")
    public String login(String username, String password, HttpServletRequest request, HttpServletResponse response){

        response.setCharacterEncoding("utf-8");

        List<User> users =  userService.selectByUsername(username);

        ImgFormat message = new ImgFormat();

        // 通過用戶名來匹配登錄的用戶信息
        for(User u : users){
            if(u.getUsername().equals(username)){
                if(u.getPassword().equals(password)){

                    // 將用戶信息保存到session中
                    HttpSession session = request.getSession();
                    session.setAttribute("user",u);

                    // 返回一個json格式的數據
                    message.setCode(1);
                    message.setMsg("登陸成功");
                    message.setData(JSONObject.fromObject(u));
                    return JSONObject.fromObject(message).toString();
                }
                message.setCode(0);
                message.setMsg("密碼不正確");
                return JSONObject.fromObject(message).toString();
            }
            message.setCode(0);
            message.setMsg("賬號不存在");
            return JSONObject.fromObject(message).toString();
        }
        message.setCode(0);
        message.setMsg("請登錄賬戶");
        return JSONObject.fromObject(message).toString();
    }

參考文獻：Fantasy_99 SSM框架：解決後臺傳數據到前臺中文亂碼問題，使用@ResponseBody返回json 中文亂碼