1、以RequestParam接收

前端传来的是json数据不多时：[id:id],可以直接用@RequestParam来获取值

@Autowired
private AccomodationService accomodationService;@RequestMapping(value = "/update")
@ResponseBody
public String updateAttr(@RequestParam ("id") int id) {int res=accomodationService.deleteData(id);return "success";
}

2、以实体类方式接收

前端传来的是一个json对象时：{【id，name】},可以用实体类直接进行自动绑定

@Autowired
private AccomodationService accomodationService;@RequestMapping(value = "/add")
@ResponseBody
public String addObj(@RequestBody Accomodation accomodation) {this.accomodationService.insert(accomodation);return "success";
}

3、以Map接收

前端传来的是一个json对象时：{【id，name】} 可以用Map获取

@Autowired
private AccomodationService accomodationService;@RequestMapping(value = "/update")
@ResponseBody
public String updateAttr(@RequestBody Map<String, String> map) {if(map.containsKey("id"){Integer id = Integer.parseInt(map.get("id"));}if(map.containsKey("name"){String objname = map.get("name").toString();}// 操作 ...return "success";
}

4、以List接收

当前端传来这样一个json数组：[{id,name},{id,name},{id,name},…]时，用List接收

@Autowired
private AccomodationService accomodationService;@RequestMapping(value = "/update")
@ResponseBody
public String updateAttr(@RequestBody List<Accomodation> list) {for(Accomodation accomodation:list){System.out.println(accomodation.toString());}return "success";
}

补充4
SpringMVC接收List型参数
1、controller

@RequestMapping("/postList")
@ResponseBody
public String postList(@RequestBody List<TestL> testL){System.out.println(testL);return null;}

注意：参数前面必须有注解 @RequestBody

2、ajax请求

var testList=[];
var user={};
user.id=1;
user.name='jack';
testList.push(user);
var user2={};
user2.id=2;
user2.name='tom';
testList.push(user2);
$.ajax({// headers必须添加，否则会报415错误headers: {'Accept': 'application/json','Content-Type': 'application/json'},type: 'POST',dataType: "json", //表示返回值类型，不必须data: JSON.stringify(testList),url: '/test/postList',success: function(){alert('success');}});

注意点：
1、参数是数组类型

2、传入data时，转换 JSON.stringify(testList)

3、必须有

headers: {'Accept': 'application/json','Content-Type': 'application/json'}

最后再看下TestL类，没有特别之处（不用包装）。

public class TestL {private Integer id;private String name;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}
}