使用SpringBoot处理JSON数据（二）

待我称王封你为后i 2024-03-25 11:18 116阅读 0赞

创建实体类，封装好Employee类

@Data 作用：获取getter()和setter()方法  
@AllArgsConstructor 作用：构造全参方法  
@NoArgsConstructor 作用：构造空参方法

import lombok.AllArgsConstructor;
    import lombok.Data;
    import lombok.NoArgsConstructor;
    
    @Data
    @AllArgsConstructor
    @NoArgsConstructor
    public class Employee {
        private String name;
        private String department;
        private String number;
        private Integer salary;
    }

创建EmployeeController类

import com.example.helloworld.pojo.Employee;
    import org.springframework.web.bind.annotation.GetMapping;
    import org.springframework.web.bind.annotation.PostMapping;
    import org.springframework.web.bind.annotation.RequestBody;
    import org.springframework.web.bind.annotation.RestController;
    import java.util.Arrays;
    import java.util.List;
    
    @RestController
    public class EmployeeController {
    
        //获取单个对象信息
        @GetMapping("/findOneEmployee")
        public Employee getEmployee(){
            return new Employee("张三","销售部","A3333",9000);
        }
    
        //获取多个对象信息
        @GetMapping("/findMultiEmployee")
        public List<Employee> getEmployees(){
            return Arrays.asList(
                    new Employee("张三","销售部","A3333",9000),
                    new Employee("黄三","技术部","B3333",19000),
                    new Employee("李三","财务部","C3333",10000),
                    new Employee("王三","销售部","A2222",9000)
            );
        }
    
        //新增一个对象
        @PostMapping("/addOneEmployee")
        public String addEmployee(@RequestBody Employee employee){
            System.out.println("添加："+ employee); //后台返回添加员工信息
            return "成功添加一个对象！";//前端返回添加成功信息
        }
    
        //新增多个对象
        @PostMapping("/addMultiEmployee")
        public String addEmployees(@RequestBody List<Employee> employees){
            employees.forEach(employee -> {System.out.println("添加："+employee);});
            return "成功添加多个对象！";
        }
    }