日日操夜夜添-日日操影院-日日草夜夜操-日日干干-精品一区二区三区波多野结衣-精品一区二区三区高清免费不卡

公告：魔扣目錄網為廣大站長提供免費收錄網站服務，提交前請做好本站友鏈：【 網站目錄：http://www.ylptlb.cn 】， 免友鏈快審服務（50元/站），

點擊這里在線咨詢客服
新站提交
  • 網站：51998
  • 待審：31
  • 小程序：12
  • 文章：1030137
  • 會員：747

一文講清楚SpringBoot六種讀取配置方式1 SpringBoot工程創建

發布時間：2023-07-03 00:40:52 作者：網友整理

1 SpringBoot工程創建

1.1 maven工程創建

使用開發工具創建一個純凈maven工程

 

1.2 引入依賴

<project xmlns="http://maven.Apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
   
    <modelVersion>4.0.0</modelVersion>
    <groupId>com.JAVA.front.spring.boot</groupId>
    <artifactId>spring-boot-java-front</artifactId>
    <version>1.0.0-SNAPSHOT</version>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.5.RELEASE</version>
    </parent>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
    </dependencies>
</project>

 

1.3 新增訂單模型

package com.java.front.spring.boot.model;
import java.util.Date;
import java.util.List;
import java.util.Map;
import com.fasterxml.jackson.annotation.JsonFormat;

public class OrderInfoModel {

    private String orderId;

    private Integer orderPrice;

    @JsonFormat(pattern = "yyyy-MM-dd HH:mm:ss")
    private Date createTime;

    private List<String> extendList;

    private Map<String, String> extendMap;

    // getter setter
}

 

1.4 新增訪問端點

package com.java.front.spring.boot.controller;
import java.util.Date;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMApping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.java.front.spring.boot.model.OrderInfoModel;

@Controller
public class OrderController {

    @ResponseBody
    @RequestMapping("getOrder")
    public OrderInfoModel queryOrder() {
        OrderInfoModel orderInfo = new OrderInfoModel();
        orderInfo.setOrderId("orderId_111");
        orderInfo.setOrderPrice(100);
        orderInfo.setCreateTime(new Date());
        return orderInfo;
    }
}

 

1.5 創建啟動類

package com.java.front.spring.boot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication
public class JavaFrontApplication {

    public static void main(String[] args) {
        SpringApplication.run(JavaFrontApplication.class, args);
    }
}

 

1.6 運行啟動類

Run AS > Spring Boot App

 

1.7 訪問測試

http://localhost:8080/getOrder

{"orderId":"orderId_111","orderPrice":100,"createTime":"2022-04-23 08:10:51","extendList":null,"extendMap":null}

 

2 方式一：XML

2.1 新增訂單服務

package com.java.front.spring.boot.service;
import com.java.front.spring.boot.model.OrderInfoModel;

public interface OrderService {
    public OrderInfoModel createOrder();
}


package com.java.front.spring.boot.service;
import java.util.Date;
import com.java.front.spring.boot.model.OrderInfoModel;

public class OrderServiceImpl implements OrderService {

    @Override
    public OrderInfoModel createOrder() {
        String orderId = "orderId_222";
        OrderInfoModel orderInfo = new OrderInfoModel();
        orderInfo.setOrderId(orderId);
        orderInfo.setOrderPrice(200);
        orderInfo.setCreateTime(new Date());
        return orderInfo;
    }
}

 

2.2 新增配置文件

# src/main/resources/spring-biz.xml

<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
       http://www.springframework.org/schema/beans/spring-beans.xsd">
    
    <bean id="orderService" class="com.java.front.spring.boot.service.OrderServiceImpl" />

</beans>

 

2.3 啟動類引入資源文件

package com.java.front.spring.boot;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.ImportResource;

@ImportResource(locations = { "classpath:spring-biz.xml" })
@SpringBootApplication
public class JavaFrontApplication {

    public static void main(String[] args) {
        SpringApplication.run(JavaFrontApplication.class, args);
    }
}

 

2.4 新增訪問端點

package com.java.front.spring.boot.controller;
import java.util.Date;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.java.front.spring.boot.model.OrderInfoModel;
import com.java.front.spring.boot.service.OrderService;

@Controller
public class OrderController {

    @Resource
    private OrderService orderService;

    @ResponseBody
    @RequestMapping("createOrder")
    public OrderInfoModel createOrder() {
        OrderInfoModel orderInfo = orderService.createOrder();
        return orderInfo;
    }
}

 

2.5 啟動并訪問

http://localhost:8080/createOrder

{"orderId":"orderId_222","orderPrice":200,"createTime":"2022-04-23 08:36:03","extendList":null,"extendMap":null}

 

3 方式二：@Bean

3.1 新增配置類

刪除配置spring-biz.xml并且新增如下配置：

package com.java.front.spring.boot.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.java.front.spring.boot.service.OrderService;
import com.java.front.spring.boot.service.OrderServiceImpl;

@Configuration
public class OrderServiceConfig {

    @Bean
    public OrderService orderService() {
        return new OrderServiceImpl();
    }
}

 

3.2 啟動并訪問

http://localhost:8080/createOrder

{"orderId":"orderId_222","orderPrice":200,"createTime":"2022-04-23 09:15:03","extendList":null,"extendMap":null}

 

4 方式三：@Bean增強

4.1 新增訂單服務

package com.java.front.spring.boot.service;
import java.util.Date;
import com.java.front.spring.boot.model.OrderInfoModel;

public class OrderServiceAImpl implements OrderService {

    @Override
    public OrderInfoModel createOrder() {
        String orderId = "orderId_AAA";
        OrderInfoModel orderInfo = new OrderInfoModel();
        orderInfo.setOrderId(orderId);
        orderInfo.setOrderPrice(200);
        orderInfo.setCreateTime(new Date());
        return orderInfo;
    }
}


package com.java.front.spring.boot.service;
import java.util.Date;
import org.springframework.stereotype.Service;
import com.java.front.spring.boot.model.OrderInfoModel;

@Service
public class OrderServiceBImpl implements OrderService {

    @Override
    public OrderInfoModel createOrder() {
        String orderId = "orderId_BBB";
        OrderInfoModel orderInfo = new OrderInfoModel();
        orderInfo.setOrderId(orderId);
        orderInfo.setOrderPrice(200);
        orderInfo.setCreateTime(new Date());
        return orderInfo;
    }
}

 

4.2 修改配置類

package com.java.front.spring.boot.config;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import com.java.front.spring.boot.service.OrderService;
import com.java.front.spring.boot.service.OrderServiceAImpl;

@Configuration
public class OrderServiceConfig {

    /**
     * 默認情況使用此實例
     *
     * 如果容器有其它實例則使用其它實例
     */
    @Bean
    @ConditionalOnMissingBean(OrderService.class)
    public OrderService orderService() {
        return new OrderServiceAImpl();
    }
}

 

4.3 啟動并訪問

http://localhost:8080/createOrder

{"orderId":"orderId_BBB","orderPrice":200,"createTime":"2022-04-23 09:40:13","extendList":null,"extendMap":null}

 

5 方式四：application.properties

5.1 引入依賴

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-configuration-processor</artifactId>
    <optional>true</optional>
</dependency>

 

5.2 新增配置文件

# src/main/resources/application.properties

server.port=9999
spring.jackson.date-format=yyyy-MM-dd HH:mm:ss
spring.jackson.time-zone=GMT+8

order.orderId=orderId_abc
order.orderPrice=500
order.createTime=2022/01/01 11:00:00
order.extendList=a,b,c
order.extendMap.k1=v1
order.extendMap.k2=v2

java.front.test.boolean=true
java.front.test.list=a,b,c
java.front.test.map={"k1":"v1","k2":"v2"}

 

5.3 新增訂單模型

package com.java.front.spring.boot.model;
import java.util.Date;
import java.util.List;
import java.util.Map;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.context.properties.ConfigurationProperties;
import org.springframework.stereotype.Component;

@Component
@ConfigurationProperties(prefix = "order")
public class OrderInfoModelV2 {

    // ---------application.properties start with order config---------

    private String orderId;

    private Integer orderPrice;

    private Date createTime;

    private List<String> extendList;

    private Map<String, String> extendMap;

    // ---------application.properties use @value to read-------------

    @Value("${java.front.test.boolean:false}")
    private Boolean testBoolean;

    @Value("#{'${java.front.test.list:{}}'.split(',')}")
    private List<String> testList;

    @Value("#{${java.front.test.map:null}}")
    private Map<String, String> testMap;

    @Value("#{3*10}")
    private Integer testInteger;

    // -------------------------getter setter-------------------------
}

 

5.4 新增訪問端點

package com.java.front.spring.boot.controller;
import java.util.Date;
import javax.annotation.Resource;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
import com.java.front.spring.boot.model.OrderInfoModel;
import com.java.front.spring.boot.model.OrderInfoModelV2;
import com.java.front.spring.boot.service.OrderService;

@Controller
public class OrderController {

    @Resource
    private OrderInfoModelV2 orderInfoModelV2;

    @ResponseBody
    @RequestMapping("queryOrderFromConfig")
    public OrderInfoModelV2 queryOrderFromConfig() {
        return orderInfoModelV2;
    }
}

 

5.5 啟動并訪問

http://localhost:9999/queryOrderFromConfig

{"orderId":"orderId_abc","orderPrice":500,"createTime":"2022-01-01 11:00:00","extendList":["a","b","c"],"extendMap":{"k1":"v1","k2":"v2"},"testBoolean":true,"testList":["a","b","c"],"testMap":{"k1":"v1","k2":"v2"},"testInteger":30}

 

6 方式五：@PropertySource

6.1 拆分訂單配置

# src/main/resources/order.properties

order.orderId=orderId_abc
order.orderPrice=500
order.createTime=2022/01/01 11:00:00
order.extendList=a,b,c
order.extendMap.k1=v1
order.extendMap.k2=v2

java.front.test.boolean=true
java.front.test.list=a,b,c
java.front.test.map={"k1":"v1","k2":"v2"}

 

6.2 @PropertySource

@PropertySource(value = { "order.properties" })
@Component
@ConfigurationProperties(prefix = "order")
public class OrderInfoModelV2 {
}

 

6.3 啟動并訪問

http://localhost:9999/queryOrderFromConfig

{"orderId":"orderId_abc","orderPrice":500,"createTime":"2022-01-01 11:00:00","extendList":["a","b","c"],"extendMap":{"k1":"v1","k2":"v2"},"testBoolean":true,"testList":["a","b","c"],"testMap":{"k1":"v1","k2":"v2"},"testInteger":30}

 

7 方式六：application.yaml

7.1 新增配置文件

# src/main/resources/application.yaml

server:
  port: 9999
 
spring:
  jackson:
    date-format: yyyy-MM-dd HH:mm:ss
    time-zone: GMT+8

order: 
  orderId: orderId_abc
  orderPrice: 500
  createTime: 2022/01/01 11:00:00
  extendList:
    - a
    - b
    - c
  extendMap: 
    k1: v1
    k2: v2

java:
  front:
    test:
      boolean: true
      list: 'a,b,c'
      map: '{"k1":"v1","k2":"v2"}'

 

7.2 啟動并訪問

http://localhost:9999/queryOrderFromConfig

{"orderId":"orderId_abc","orderPrice":500,"createTime":"2022-01-01 11:00:00","extendList":["a","b","c"],"extendMap":{"k1":"v1","k2":"v2"},"testBoolean":true,"testList":["a","b","c"],"testMap":{"k1":"v1","k2":"v2"},"testInteger":30}

 

8 文章總結

本文梳理了SpringBoot六種讀取配置方式，大家在項目中可以進行靈活組合和應用，希望本文對大家有所幫助。

歡迎大家關注今日頭條號「JAVA前線」查看更多精彩分享文章，主要包括源碼分析、實際應用、架構思維、職場分享、產品思考

分享到：
標簽：SpringBoot
用戶無頭像

網友整理

注冊時間：

網站：5 個   小程序：0 個  文章：12 篇

  • 51998

    網站

  • 12

    小程序

  • 1030137

    文章

  • 747

    會員

趕快注冊賬號，推廣您的網站吧！
最新入駐小程序

數獨大挑戰2018-06-03

數獨一種數學游戲，玩家需要根據9

答題星2018-06-03

您可以通過答題星輕松地創建試卷

全階人生考試2018-06-03

各種考試題，題庫，初中，高中，大學四六

運動步數有氧達人2018-06-03

記錄運動步數，積累氧氣值。還可偷

每日養生app2018-06-03

每日養生,天天健康

體育訓練成績評定2018-06-03

通用課目體育訓練成績評定