AJAX

请求一个页面

//JS
function fn(w){
    $.ajax({
        type: 'post',
        url: w,
        dataType: 'html',
        success: function (result) {
            $('#MasterContent').html(result);
        }
    });
}
//后台
@RequestMapping("/pc/gouxuan")
public String fpGouxuan(){
    return "sjpc/gouxuanPc";
}

请求一个数据

 //JS
$.ajax({  
    "type":"POST",  
    "url": "pc/GsList.do",  
    "data": null,
    "dataType": "json",
    "success": function(res) {}
}）;
//后台
@RequestMapping("/pc/GsList")
@ResponseBody
public Json getGsList(HttpServletRequest req){
    List<HashMap<String,String>> gsList = new ArrayList<HashMap<String,String>>();
    String tel = "18108118251";
    gsList = byTelService.getGSList(tel);
    //获取该电话号码的管理的公司列表【公司名称，纳税人识别号，纳税人社会信用代码】
    System.out.println("*****************"+gsList.size()+"************");
    Json json = new Json();
    json.setObj(gsList);
    json.setMsg("公司列表");
    json.setSuccess(true);
    return json;
}

将JSON字符串转化为Map或List<Map>

引入包：
json-lib-2.2-jdk15.jar包之外，还必须有其它几个依赖包：commons-beanutils.jar，commons-    
httpclient.jar，commons-lang.jar，ezmorph.jar，morph-1.0.1.jar 


import net.sf.json.JSONArray;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.reflect.TypeToken;
//*******************************转化为List<Map>*******************
/**
 * @Title: jsonToListMap
 * @Description: 将获取的json字符串数组转化为list<Map>
 * @param: @param jsonStr
 * @param: @return  
 * @return: List<Map<String,String>>   
 * @throws
 */
//将jsonStr转化为List<Map> jsonStr输出如下：
String jsonStr =  "[{
"GFMC": "2",
"FPHM": "2",
"XFSH": "2",
"FPDM": "2",
"ROW_ID": 2,
"XFMC": "2",
"JE": 2,
"GXZT": 2,
"GFSH": "2",
"KPRQ": "2"
}, {
"GFMC": "a1",
"FPHM": "a1",
"XFSH": "a1",
"FPDM": "a1",
"ROW_ID": "a1",
"XFMC": "a1",
"JE": "a1",
"GXZT": 0,
"GFSH": "a1",
"KPRQ": "a1"
}]";

public List<Map<String, String>> jsonToListMap(String jsonStr){
    JSONArray json=JSONArray.fromObject(jsonStr);
    List<Map<String,String>> listMaps = new ArrayList<Map<String,String>>();
    GsonBuilder gb = new GsonBuilder();
    Gson g = gb.create();
    for(int i=0;i<json.size();i++){
        Map<String, String> map = g.fromJson(json.get(i).toString(), new TypeToken<Map<String, String>>() {}.getType());
        listMaps.add((Map<String, String>) map);
    }
    for(int j=0;j<listMaps.size();j++){
        System.out.println(listMaps.get(j).toString());
    }
    return listMaps;
}



//************************************转化为map******************
//将{"fpdm":"","fphm":"","dateCheck":"","xfsh":"","sfgx":"1"}转换为map
    GsonBuilder gb = new GsonBuilder();
    Gson g = gb.create();
    Map<String, String> map = g.fromJson(pd.get("search").toString(), new TypeToken<Map<String, String>>() {}.getType());