【后端】springboot项目

【后端目录贴】

1. 2.3.7.RELEASE版本搭建

1.1 pom文件

1.1.1 方式一

<parent><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-parent</artifactId><version>2.3.7.RELEASE</version><relativePath/> <!-- lookup parent from repository --></parent><properties><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding></properties><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><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency></dependencies><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.8.1</version><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.3.7.RELEASE</version><configuration><mainClass>com.example.demo33.Demo33Application</mainClass><!--<skip>true</skip> 要注释，否则打包不可执行--></configuration><executions><!--执行目标必须加--><execution><id>repackage</id><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins></build>

1.1.2 方式二

<properties><java.version>1.8</java.version><project.build.sourceEncoding>UTF-8</project.build.sourceEncoding><project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding><spring-boot.version>2.3.7.RELEASE</spring-boot.version>
</properties><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><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-starter-test</artifactId><scope>test</scope></dependency>
</dependencies><dependencyManagement><dependencies><dependency><groupId>org.springframework.boot</groupId><artifactId>spring-boot-dependencies</artifactId><version>${spring-boot.version}</version><type>pom</type><scope>import</scope></dependency></dependencies>
</dependencyManagement><build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-compiler-plugin</artifactId><version>3.8.1</version><configuration><source>1.8</source><target>1.8</target><encoding>UTF-8</encoding></configuration></plugin><plugin><groupId>org.springframework.boot</groupId><artifactId>spring-boot-maven-plugin</artifactId><version>2.3.7.RELEASE</version><configuration><mainClass>com.example.demo33.Demo33Application</mainClass><!--<skip>true</skip> 要注释，否则打包不可执行--></configuration><executions><execution><id>repackage</id><goals><goal>repackage</goal></goals></execution></executions></plugin></plugins>
</build>

1.2 启动类

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

1.3 测试类

import org.junit.jupiter.api.Test; //这个版本不需要public测试方法,其他版本需要测试方法public
import org.springframework.boot.test.context.SpringBootTest;@SpringBootTest
class MultiDatasource6ApplicationTests {@Testvoid contextLoads() {System.out.println("你好啊");}}

2. 引入@Value乱码问题解决

如果引入application.properties中的值会乱码
参考:SpringBoot使用@Value读取.properties中文乱码及解决方法
解决办法:

• 自定义配置文件 [@PropertySource(value = {"classpath:aa.properties"},encoding = "UTF-8")]
• 使用yml/yaml配置文件