springMVC传递list对象的三种使用方式

//例子
//b=曹,a=1
POST  HTTP/1.1(CRLF)
Host: www.example.com(CRLF)
Content-Type: application/x-www-form-urlencoded(CRLF)
Cache-Control: no-cache(CRLF)
(CRLF)
b=%E6%9B%B9&a=1(CRLF)
//这里b参数的值"曹"因为URL转码变成其他的字符串了

$("#test").click(function(){
    var testData={"nameIds": [1,2,3], "age": 18}
    $.ajax({
        type:"POST",
        url: basePath + "/test/testInOut",
        dataType:"json",
        contentType:"application/x-www-form-urlencoded", // 指定这个协议很重要
        data:faultList, //只有这一个参数，json格式，后台解析为实体，后台可以直接用
        success:function(data){
        }
    });
})

<mvc:annotation-driven/> 

$("#test").click(function(){
    var testData={"nameIds": [1,2,3], "age": 18}
    $.ajax({
        type:"POST",
        url: basePath + "/test/testInOut",
        dataType:"json",
        contentType:"application/x-www-form-urlencoded", // 指定这个协议很重要
        data:faultList, //只有这一个参数，json格式，后台解析为实体，后台可以直接用
        success:function(data){
        }
    });
})

//controller层
 @RequestMapping(value = "/test/testInOut")
 @ResponseBody
 public void testInOut(Integer[] nameIds, Integer age){ 
      System.out.println(nameIds, age) ;
 }

//POJO对象传输对象   RepairFaultList.java
public class RepairFaultList{
    private Integer id;
    private String faultName;//故障名称
    private String employeeGroup;//所属工组
    //getter  setter
}

$("#test").click(function(){
     //对象数组
     var faultList=[];
     var data1={id:1,"faultName":"机电有问题","employeeGroup":"机电"};
     var data2={id:2,"faultName":"钣金有问题","employeeGroup":"钣金"};
     faultList.push(data1);
     faultList.push(data2);
    $.ajax({
        type:"POST",
        url: basePath + "/test/testInOut",
        dataType:"json",
        contentType:"application/json", // 指定这个协议很重要
        data:JSON.stringify(faultList), //只有这一个参数，json格式，后台解析为实体，后台可以直接用
        success:function(data){
        }
    });
})

//controller层
 @RequestMapping(value = "/test/testInOut", method = {RequestMethod.POST })
 @ResponseBody
 public void testInOut( @RequestBody List<RepairFaultList> faultList ){ 
 //此时的faultList是map数据，并没有解析为bean // 不建议使用
      System.out.println(users) ;
 }

//使用如下方法，可以使用bean
 @RequestMapping(value = "/test/testInOut", method = RequestMethod.POST)
 @ResponseBody
 public void testInOut( @RequestBody RepairFaultList[] faultList ){ 
     // 此时的faultList是实体bean
      System.out.println(users.getName()) ; 
 }

//前端同上
//controller层
 @RequestMapping(value = "/test/testInOut", method = RequestMethod.POST)
 @ResponseBody
 public void testInOut( @RequestBody List<Map<String,String>> faultList ){ // spring MVC只能解析外层的json格式，内部的bean转化为Map格式的键值对，需要对map解析
      List<RepairFaultList> result = new ArrayList<RepairFaultList>();
      for(Map<String,String> map : faultList){
          RepairFaultList u = new RepairFaultList();
          //一系列get  set数据
      }
     // 这里就可以使用 result 了
 }

     //基本数据类型数组对象
     var operatorIds = [1,2,3];
     //对象数组
      var faultList=[];
      var data1={id:1,"faultName":"机电有问题","employeeGroup":"机电"};
      var data2={id:2,"faultName":"钣金有问题","employeeGroup":"钣金"};
      faultList.push(data1);
      faultList.push(data2);
      var testData={operatorIds:operatorIds,repairBillId: 110,faultList: faultList};
      $.ajax({
          type:"POST",
          url: basePath + "/test/testInOut",
          dataType:"json",
          contentType: application/json,
          data:JSON.stringify(testData), //只有这一个参数，json格式，后台解析为实体，后台可以直接用
          success:function(data){
          }
      });
  })

//POJO对象   创建一个对象由于存放key-value和对象数组  AppointPrePersonRo.java
public class AppointPrePersonRo {
    private Integer[] operatorIds;
    private List<RepairFaultList> faultList;
    private Integer repairBillId;
    //getter setter
}

//controller层
@RequestMapping(value = "/test/testInOut")
@ResponseBody
 public String testInOut(@RequestBody  AppointPrePersonRo appointPrePersonRo) {
         return "sucess";
     }
 }