Java Http请求传json数据乱码问题的解决

时间:2021-04-02 人气:0

业务场景：调easyui的dialog打开一个弹窗，传参是用json封装的，而且有中文，然后在极速模式是正常的，在ie11测试发现中文出现乱码了

var params = JSON.stringify(writParamList);
top.dialog({
  id: 'noticeList',
  title:'列表',
  width:900,
  height:500,
  url:'${root}/notice/multiNoticeList.do?params='+params,
  onclose:function(){
   //location.reload();
  }
}).showModal();

后台获取json数据，并转成list，然后在ie模式，获取到的json数据都出现中文乱码，然后导致json不能解析报错了

String params = request.getParameter("params");
 logger.info("文书参数转换前:》》"+params);
 params=StringEscapeUtils.unescapeJava(params);
 logger.info("文书参数转换后:》》"+params);
 ObjectMapper mapper = new ObjectMapper();
 JavaType javaType = mapper.getTypeFactory().constructParametricType(List.class, ApprWritUnionFormModel.class);
 /*List<FormModel> writUnionFormList = 
  JSON.parseArray(params, FormModel.class);*/
 List<FormModel> writUnionFormList=new ArrayList<FormModel>();
 try {
  writUnionFormList = (List<FormModel>)mapper.readValue(params, javaType);
 } catch (JsonParseException e) {
  e.printStackTrace();
 } catch (JsonMappingException e) {
  e.printStackTrace();
 } catch (IOException e) {
  e.printStackTrace();
 }

针对上面问题，和同事讨论，最开始打算base64加密来传，然后发现base64加密中文出现问题，所以改成URLEncode的方式，前端加密两遍，后台在解密一遍

var params = JSON.stringify(writParamList);
top.dialog({
  id: 'noticeList',
  title:'列表',
  width:900,
  height:500,
  url:'${root}/notice/multiNoticeList.do?params='+encodeURI(encodeURI(params)),
  onclose:function(){
   //location.reload();
  }
}).showModal();

后台代码修改，解码一遍，然后发现在ie也正常

String params = request.getParameter("params");
 logger.info("文书参数转换前:》》"+params);
 //params=StringEscapeUtils.unescapeJava(params);
// byte[] buffer=Base64Utils.decodeFromString(params);
// params = new String(buffer);
  try {
  params=URLDecoder.decode(params,"utf-8");
 } catch (UnsupportedEncodingException e1) {
  e1.printStackTrace();
 }
 logger.info("文书参数转换后:》》"+params);
 ObjectMapper mapper = new ObjectMapper();
 JavaType javaType = mapper.getTypeFactory().constructParametricType(List.class, ApprWritUnionFormModel.class);
 /*List<FormModel> writUnionFormList = 
  JSON.parseArray(params, FormModel.class);*/
 List<FormModel> writUnionFormList=new ArrayList<FormModel>();
 try {
  writUnionFormList = (List<FormModel>)mapper.readValue(params, javaType);
 } catch (JsonParseException e) {
  e.printStackTrace();
 } catch (JsonMappingException e) {
  e.printStackTrace();
 } catch (IOException e) {
  e.printStackTrace();
 }

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