SpringMVC利用json接收复杂对象和数组

淩亂°似流年 2022-05-09 16:24 346阅读 0赞

## 1,SpringMVC接收复杂参数必须要在参数前加 ##

**@RequestBody**

### 2,ajax设置参数 ###

**contentType: 'application/json;charset=utf-8'（设置发送数据类型为json）**

**data: JSON.stringify(对象或者数组)（序列化json数据）**

@Controller
    public class SpringTest {
        @RequestMapping("myTest")
        public void springMVCTest(@RequestBody List<People> people){
            System.out.println(people);
        }
        @RequestMapping("/")
        public String home(){
            return "home.html";
        }
    }

实体类（getter/setter略）
    public class People {
        private String name;
        private Integer age;
        private Company company;
    }
    public class Company {
        private String name;
        private Address address;
    }
    public class Address {
        private String location;
        private String phoneNum;
    }

<!DOCTYPE html>
    <html lang="en">
    <head>
        <title>这是测试页面</title>
        <meta charset="utf-8">
    </head>
    <body>
    <button onclick="doAjax()">测试按钮</button>
    </body>
    <script src="js/jquery-3.3.1.min.js"></script>
    <script type="text/javascript">
        function doAjax() {
            $.ajax({
                url: "/myTest",
                type: "post",
                dataType: "json",
                contentType: 'application/json;charset=utf-8',
                async: true,
                data: JSON.stringify(
                    [
                        {name: '小红', age: 20, company: {name: '阿里', address:{location:'杭州',phoneNum:'88888'}}},
                        {name: '小王', age: 22, company: {name: '腾讯', address:{location:'深圳',phoneNum:'99999'}}}
                    ]
                ),
            });
        }
    </script>
    </html>

##  输出 ##

> \[People\{name='小红', age=20, company=Company\{name='阿里', address=Address\{location='杭州',phoneNum='88888'\}\}\},
> 
> People\{name='小王', age=22, company=Company\{name='腾讯', address=Address\{location='深圳', phoneNum='99999'\}\}\}\]

（本测试基于SpringMVC 5.0.8）