RESTful学习笔记（二）---简单网页前后端springboot项目搭建

新建项目：

项目结构

Pom.xml中添加依赖：

要有用于启动的父进程，有启动依赖，有lombok用于自动构建getter和setter方法等

<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.4.5</version></parent><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-web</artifactId></dependency><dependency><groupId>org.projectlombok</groupId><artifactId>lombok</artifactId><optional>true</optional></dependency>
</dependencies>

代码：

User类中

package com.example.demo.demos.web;import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;@Getter
@Setter
@AllArgsConstructor
@NoArgsConstructor
public class User {private Long id;private String name;private Integer age;public String getName() {return name;}public void setName(String name) {this.name = name;}public Integer getAge() {return age;}public void setAge(Integer age) {this.age = age;}public Long getId() {return id;}public void setId(Long id) {this.id = id;}
}

controller类中

package com.example.demo.Controller;import com.example.demo.demos.web.User;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;import java.util.Arrays;
import java.util.List;import static jdk.nashorn.internal.runtime.PropertyDescriptor.GET;@Controller
/*** 员工对外接口（请求路径规定）声明类* 员工控制层*/
public class EmployeeController { @RequestMapping(value= "/employees",method = RequestMethod.GET)@ResponseBodypublic List<User> list(){List<User> list= Arrays.asList(new User(1L,"小七",18),new User(2l,"圆心",19));return list;}
}

启动springboot项目，默认端口号8080

 @RequestMapping(value= "/employees",method = RequestMethod.GET)

路径/employees(符号restful风格对于资源名称采用复数形式)，GET请求代表获取所有的员工，响应码200响应成功，content-type为Json代表返回的数据是json格式的 

请求路径：http://localhost:8080/employees

如下图即前后端连接成功