• 修改程序访问端口
  - http://localhost:8080/hello修改为http://localhost:8085/hello
• 修改程序访问的路径
  - http://localhost:8085/hello修改为http://localhost:8085/tigerkin/hello
• 自定义属性绑定
  - tiger.map.name=张三绑定到变量上

1. 新建一个基础SpringBoot项目
2. 引入web依赖spring-boot-starter-web
3. 修改application.properties文件
4. 新建接口访问类HelloController.java
5. 运行项目，浏览器访问测试

1. 修改pom.xml,引入web依赖

<dependency>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-web</artifactId>
</dependency>

2. 修改application.properties，添加server.port=8085

#将默认的8080端口访问修改成8085
server.port=8085

3. 新建HelloController.java，/hello用来访问测试

package com.yejx.demo;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class HelloController {
    @RequestMapping("/hello")
    public String hello(){
        return "Hello world Spring Boot!";
    }
}

1. 基于修改端口的操作，修改application.properties，添加server.servlet.context-path=/yejx

server.port=8085
server.servlet.context-path=/tigerkin

1. 修改application.properties文件，添加如下代码

# 随机数
com.yejx.age.number=${random.int}
#Map
##方式一
tiger.map.name=张三
tiger.map.age=1
##方式二
tiger.map[name]=张三1
tiger.map[age]=11
#List
##方式一
tiger.list[0]=一
tiger.list[1]=二
tiger.list[2]=三
##方式二
tiger.list=一1,二1,三1

2. 新建Tiger.java，

package com.yejx.pojo;

import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
//注册该类到spring容器中，方便测试时使用
@Component
//该注解配置属性前缀，会根据前缀自定匹配对应的变量
@ConfigurationProperties(prefix = "tiger")
public class Tiger {
    private Map<String,Object> map = new HashMap<>();
    private List<String> list = new ArrayList<>();

    public Map<String, Object> getMap() {
        return map;
    }

    public void setMap(Map<String, Object> map) {
        this.map = map;
    }

    public List<String> getList() {
        return list;
    }

    public void setList(List<String> list) {
        this.list = list;
    }
}

3.新建测试类Tigerkin02ApplicationTests.java

package com.yejx.demo;

import com.alibaba.fastjson.JSONObject;
import com.yejx.pojo.Tiger;
import com.yejx.pojo.User;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;

import java.util.Arrays;

@SpringBootTest
class Tigerkin02ApplicationTests {

    @Autowired
    private User user;
    @Autowired
    private Tiger tiger;

    @Test
    void contextLoads() {
        System.out.println(user.toString());
        System.out.println(JSONObject.toJSONString(tiger.getMap()));
        System.out.println(Arrays.toString(tiger.getList().toArray()));
    }
}

4. 运行Tigerkin02ApplicationTests.java测试类
   控制台输出如下

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::                (v2.4.5)

2021-05-24 22:16:56.426  INFO 11444 --- [           main] c.yejx.demo.Tigerkin02ApplicationTests   : Starting Tigerkin02ApplicationTests using Java 1.8.0_202 on yejx with PID 11444 (started by 11432 in D:\work\file\document\yejx\开发学习\springboot\SpringBoot\tigerkin\tigerkin02)
2021-05-24 22:16:56.429  INFO 11444 --- [           main] c.yejx.demo.Tigerkin02ApplicationTests   : No active profile set, falling back to default profiles: default
2021-05-24 22:16:57.565  INFO 11444 --- [           main] o.s.s.concurrent.ThreadPoolTaskExecutor  : Initializing ExecutorService 'applicationTaskExecutor'
2021-05-24 22:16:57.883  INFO 11444 --- [           main] c.yejx.demo.Tigerkin02ApplicationTests   : Started Tigerkin02ApplicationTests in 1.733 seconds (JVM running for 2.799)

User{name='yejingxuan', age=20}
{"name":"张三","age":"1"}
[一1, 二1, 三1]

2021-05-24 22:16:58.118  INFO 11444 --- [extShutdownHook] o.s.s.concurrent.ThreadPoolTaskExecutor  : Shutting down ExecutorService 'applicationTaskExecutor'
Disconnected from the target VM, address: '127.0.0.1:52570', transport: 'socket'