java老有关问题 ！乱码有关问题.

java老问题 ！！乱码问题...
深圳-IDLER菜鸟(328897842) 21:48:23
// 查询面板
  var _store = new Ext.data.JsonStore({  
  autoLoad: true,
  fields: ["permissionId", "permissionName", "permissionUse"],  
  proxy: {  
  type: "ajax",  
  url: "permission.json",  
  reader: {  
  type: "json",  
  root: "permissions"  
  }  
  }  
  }); 
permission.json:
  {'permissions': [
{permissionId:'1001',permissionName:'只能三1',permissionUse:'tianjia1'},
{permissionId:'1002',permissionName:'zhangsan2',permissionUse:'tianjia2'},
{permissionId:'1003',permissionName:'zhangsan3',permissionUse:'tianjia3'}
],'successs':true}

深圳--IDLER (328897842) 21:41:43
帮看看 这个解析的有乱码

[解决办法]
如果是post方法，在后台的方法里加
response.setCharacterEncoding("utf-8");
response.setContentType("application/json;charset=UTF-8");