JQuery异步获取返回值中文乱码的解决方法

用jqgrid异步获取列表值,遇到个问题,服务器端从数据库取到的数据没有出现中文乱码问题(日志打出来是没有乱码的),但是异步传到客户的时候却出现了乱码。 服务器端已经编码过了(UTF-8编码)。开始一直怀疑是客户端的问题,比如客户端和服务器端编码不一致啊,也怀疑是不是jqGrid工具函数中少配了 contentType: "application/x-www-form-urlencoded; charset=utf-8",   等等问题。

结果都不是,纠结了几个小时,后来经过大牛的提醒发现,原来代码还是出在服务器端,疏忽了。

@RequestMapping(value = "/searchUserList.form")

@ResponseBody

public void searchUserList(int page, int rows, HttpServletRequest request, HttpServletResponse response) throws IOException{

System.out.println("idcard="+idCard+"\n page="+page+"\n rows="+rows);

List<User> list = userService.findByIDCard(idCard);

int totalRecord = list.size();

int totalPage = totalRecord%rows == 0 ? totalRecord/rows : (totalRecord/rows+1);

int index = (page-1)*rows;

int pageSize = rows;

String json = "{\"total\": \""+totalPage+"\", \"page\": \""+page+"\", \"records\": \""+totalRecord+"\", \"rows\": [";

for (int i = index; i < pageSize + index && i<totalRecord; i++) {

User u = list.get(i);

json += "{\"id\":\"" + u.getUserId() + "\",\"userName\":\""+u.getUserName()+"\",\"idCard\":\""+

u.getIdCard() +"\",\"userTel\":\""+u.getUserTel()+"\",\"userSex\":\""+u.getUserSex()+

"\",\"bankCard\":\""+u.getBankCard()+"\",\"cardStatus\":\""+u.getCardSatus()+"\",\"createTime\":\""+

u.getCreateTime()+"\"}";

if (i != pageSize + index - 1 && i != totalRecord - 1) {

json += ",";

}

}

json += "]}";

request.setCharacterEncoding("utf-8"); //这里不设置编码会有乱码

response.setContentType("text/html;charset=utf-8");

response.setHeader("Cache-Control", "no-cache");

PrintWriter out = response.getWriter(); //输出中文,这一句一定要放到response.setContentType("text/html;charset=utf-8"), response.setHeader("Cache-Control", "no-cache")后面,否则中文返回到页面是乱码

out.print(json.toString());

out.flush();

out.close();

}

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