SpringBoot项目中对于数组类型数据接收方式
一、先定义一个简单的实体类
package cn.js.domain;
import lombok.Data;
@Data
public class Person {
private String name;
private int age;
}
二、前端传递的json数据方式:
1.前端传递普通json,后端用对象接收:
{
"name":"张三",
"age":12
}
用对象接收json:
@PostMapping("/test1")
public String test(@RequestBody Person person){
System.out.println("name"+person.getName());
System.out.println("age"+ person.getAge());
return "成功";
}
2.前端传递json数组:
{
"name":["小明","小三","小四"],
"age":12
}
用Map接收json数组:
@PostMapping("/test2")
public String test2(@RequestBody Map hasaMap){
ArrayList arrayList = new ArrayList();
arrayList = (ArrayList) hasaMap.get("name");
String str = (String) arrayList.get(0);
System.out.println("arrayList"+str);
System.out.println("name"+hasaMap.get("name"));
System.out.println("age"+ hasaMap.get("age"));
return "成功";
}
3.前端传递json数组,后端用集合接收Josn数组
{
"name":["小明","小三","小四"]
}
用Map嵌套List接收 json数组
@PostMapping("/test2")
public String test3(@RequestBody Map<String,List > hasaMap){
System.out.println("name"+hasaMap.get("name"));
return "成功";
}