SpringBoot开发（四）SpringBoot配置文件

1. SpringBoot配置文件

1.1. 配置端口号和路径

  （1）在application.properties文件下配置端口号和路径。

server.port: 8081
server.servlet.context-path=/demo

  （2）运行访问。

1.2. 自定义配置

1.2.1. 方式一

  （1）在application.properties文件下添加配置。

wechat.appid: wx7874d0c23d07e2aa
wechat.token: education
wechat.appSecret: e03f5ab03906d4d943675c233d4c3cb3

  （2）创建config文件夹和WeChat实体类

package com.zzs.szyj.config;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@ConfigurationProperties("wechat")
@Component
public class WeChat {

    private String appId;

    private String token;

    private String appSecret;

    private String port;

    public String getPort() {
        return port;
    }

    public void setPort(String port) {
        this.port = port;
    }

    public String getAppId() {
        return appId;
    }

    public void setAppId(String appId) {
        this.appId = appId;
    }

    public String getToken() {
        return token;
    }

    public void setToken(String token) {
        this.token = token;
    }

    public String getAppSecret() {
        return appSecret;
    }

    public void setAppSecret(String appSecret) {
        this.appSecret = appSecret;
    }
}

  （3）在HelloController编写新接口

package com.zzs.szyj;

import com.zzs.szyj.config.WeChat;
import jakarta.annotation.Resource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
// @Controller + @ResponseBody
public class HelloController {
    @Resource
    //@Autowired
    private WeChat weChat;
    @RequestMapping("/hello")
    public String hello() {
        return "hello Spring Boot";
    }
    @GetMapping("/getWeChat")
    public WeChat getWeChat() {
        return weChat;
    }
}

  （4）重启服务

  （5）访问接口

1.2.2. 方式二

  （1）创建config文件夹和WeChatConfig类

@Configuration // 标识这是一个配置类
public class WeChatConfig {
    @Bean
    @ConfigurationProperties("wechat")
    public WeChat weChat() {
        return new WeChat();
    }

}

  （2）重启服务，访问接口

1.2.3. 方式三

  （1）修改HelloController类

package com.zzs.szyj;
import com.zzs.szyj.config.WeChat;
import jakarta.annotation.Resource;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
@RestController
// @Controller + @ResponseBody
public class HelloController {
    //    @Resource
//    //@Autowired
//    private WeChat weChat;
    @Value("${wechat.appId}")
    private String appId;
    @Value("${wechat.token}")
    private String token;
    @Value("${wechat.appSecret}")
    private String appSecret;
    @GetMapping("/getWeChat1")
    public WeChat getWeChat() {
        WeChat weChat = new WeChat();
        weChat.setAppId(appId);
        weChat.setAppSecret(appSecret);
        weChat.setToken(token);
        return weChat;
    }
    @RequestMapping("/hello")
    public String hello() {
        return "hello Spring Boot";
    }
    //    @GetMapping("/getWeChat")
//    public WeChat getWeChat() {
//        return weChat;
//    }

}

  （2）重启服务，访问接口

1.2.1. 方式四

  @PropertySource
  （1）新建my.properties

wechat1.appId=wx7874d0c23d07e2aa
wechat1.token=51zxw
wechat1.appSecret=e03f5ab03906d4d943675c233d4c3cb3

  （2）新建MyWeChat类

package com.zzs.szyj.config;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.context.annotation.PropertySource;
import org.springframework.stereotype.Component;
@PropertySource("my.properties")
@ConfigurationProperties("wechat1")
@Component
public class MyWeChat {
    private String appId;
    private String token;
    private String appSecret;
    public String getAppId() {
        return appId;
    }
    public void setAppId(String appId) {
        this.appId = appId;
    }
    public String getToken() {
        return token;
    }
    public void setToken(String token) {
        this.token = token;
    }
    public String getAppSecret() {
        return appSecret;
    }
    public void setAppSecret(String appSecret) {
        this.appSecret = appSecret;
    }
}

  （3）修改HelloController类

package com.zzs.szyj;
import com.zzs.szyj.config.WeChat;
import jakarta.annotation.Resource;
import org.springframework.context.ApplicationContext;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.core.env.Environment;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
// @Controller + @ResponseBody
public class HelloController {
    //    @Resource
//    //@Autowired
//    private WeChat weChat;
    @Value("${wechat.appId}")
    private String appId;
    @Value("${wechat.token}")
    private String token;
    @Value("${wechat.appSecret}")
    private String appSecret;
    @Value("${wechat.port}")
    private String wechatPost;
    @Resource
    private ApplicationContext applicationContext;
    @GetMapping("/getWeChat2")
    public WeChat getWeChat2() {
        Environment environment = applicationContext.getEnvironment();
        String appId = environment.getProperty("wechat.appId");
        String token = environment.getProperty("wechat.token");
        String appSecret = environment.getProperty("wechat.appSecret");
        WeChat weChat = new WeChat();
        weChat.setAppId(appId);
        weChat.setPort(wechatPost);
        weChat.setToken(token);
        weChat.setAppSecret(appSecret);
        return weChat;
    }

    @GetMapping("/getWeChat1")
    public WeChat getWeChat() {
        WeChat weChat = new WeChat();
        weChat.setAppId(appId);
        weChat.setAppSecret(appSecret);
        weChat.setToken(token);
        return weChat;
    }
    @RequestMapping("/hello")
    public String hello() {
        return "hello Spring Boot";
    }
    //    @GetMapping("/getWeChat")
//    public WeChat getWeChat() {
//        return weChat;
//    }

}

  （2）重启服务，访问接口

1.3. application.yml

  （1）新建application.yml

server:
  port: 8082
wechat:
  appId: wx7874d0c23d07e2aa
  token: 51zxw
  appSecret: e03f5ab03906d4d943675c233d4c3cb3

  （2）重启服务，访问接口

1.4. SpringBoot多环境配置

1.4.1. 修改application.yml

server:
  port: 8082
wechat:
  appId: wx7874d0c23d07e2aa
  token: 51zxw
  appSecret: e03f5ab03906d4d943675c233d4c3cb3
  port: ${server.port}

1.4.2. 多环境配置

  （1）新建application-dev.yml、application-local.yml、application-pre.yml、application-prod.yml、application-test.yml

  （2） 修改application.yml

wechat:
  appId: wx7874d0c23d07e2aa
  token: 51zxw
  appSecret: e03f5ab03906d4d943675c233d4c3cb3
  port: ${server.port}
spring:
  profiles:
    active: local

  （3） 运行

1.4.3. 多环境配置注入url

  （1）多环境配置文件注入url


  （2）添加链接

  （2）运行

  SpringBoot配置文件、配置示例下载