jsp URL 传参数 服务端接收后乱码的问题

jsp页面：

 

 1 //查询        
 2 function search() {
 3     var projectId = $("#projIDSort").val();
 4 
 5     var voltageLevel = $("#voltageSort").val();
 6     var equipCate = $("#equCateSort").val();
 7 
 8     var url = "$(ctx)/projectDataQueryAction!searchProjectEquInfo.action?projectId="
 9             + encodeURIComponent(projectId);
10     if (voltageLevel != "-1") {
11         url += "&voltageLevel=" + encodeURIComponent(voltageLevel);
12         if (equipCate != "-1") {
13             url += "&equipCate=" + encodeURIComponent(equipCate);
14         }
15         else{
16             url += "&equipCate=-1";
17         }
18     } else {
19         url += "&voltageLevel=-1";
20         if (equipCate != "-1") {
21             url += "&equipCate=" + encodeURIComponent(equipCate);
22         }
23         else{
24             url += "&equipCate=-1";
25         }
26     }
27     $('#datagrid').datagrid('options').url = encodeURI(url);
28     $('#datagrid').datagrid('reload');
29 
30 }
服务端：

View Code 
 1 public String searchProjectEquInfo() throws IOException {
 2         //@SuppressWarnings("unused")
 3         String equipcate = java.net.URLDecoder.decode(equipCate, "utf-8");
 4         List list = projectDataQueryService.getProjectEquInfoByList(projectId,
 5                 voltageLevel,equipcate );
 6 
 7         int count = list.size();
 8         List tempList = new ArrayList();
 9         HttpServletRequest request = ServletActionContext.getRequest();
10         HttpServletResponse response = ServletActionContext.getResponse();
11         response.setHeader("charset", "UTF-8");
12         response.setCharacterEncoding("UTF-8");
13         response.setContentType("text/xml;charset=UTF-8");
14         PrintWriter out = response.getWriter();
15         String page = request.getParameter("page");// 当前页
16         String rows = request.getParameter("rows");// 每页显示记录数
17         if (rows != null) {
18             pageSize = Integer.parseInt(rows);
19         } else {
20             pageSize = 10;
21         }
22         if (page != null) {
23             pageNum = Integer.parseInt(page);
24         } else {
25             pageNum = 1;
26         }
27         int pagenum = pageNum.intValue();
28         int pagesize = pageSize.intValue();
29         Object[] arr = list.toArray();
30         int pageNum = pagenum;
31         int pageSize = pagesize;
32         for (int i = (pageNum - 1) * pagesize; i < (pageNum - 1) * pagesize
33                 + pageSize; i++) {
34             int totalNum = arr.length;
35             if (i < totalNum) {
36                 tempList.add((EquipInfo) arr[i]);
37             } else {
38                 break;
39             }
40         }
41         result.setPageNo(pagenum);
42         result.setPageSize(pagesize);
43         result.setRowCount(count);
44         result.setResult(tempList);
45         String json = JsonUtil.toJSON(result);
46         out.write(json);
47         out.flush();
48         out.close();
49         return null;
50     }