【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.bootgroupId>
        <artifactId>spring-boot-starter-parentartifactId>
        <version>2.3.7.RELEASEversion>
        <relativePath/> 
    parent>
    <properties>
        <java.version>1.8java.version>
        <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
    properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-webartifactId>
        dependency>

        <dependency>
            <groupId>org.projectlombokgroupId>
            <artifactId>lombokartifactId>
            <optional>trueoptional>
        dependency>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-starter-testartifactId>
            <scope>testscope>
        dependency>
    dependencies>

    <build>
        <plugins>
           <plugin>
                <groupId>org.apache.maven.pluginsgroupId>
                <artifactId>maven-compiler-pluginartifactId>
                <version>3.8.1version>
                <configuration>
                    <source>1.8source>
                    <target>1.8target>
                    <encoding>UTF-8encoding>
                configuration>
            plugin>
            <plugin>
                <groupId>org.springframework.bootgroupId>
                <artifactId>spring-boot-maven-pluginartifactId>
                <version>2.3.7.RELEASEversion>
                <configuration>
                    <mainClass>com.example.demo33.Demo33ApplicationmainClass>
                    
                configuration>
                <executions>
                    
                    <execution>
                        <id>repackageid>
                        <goals>
                            <goal>repackagegoal>
                        goals>
                    execution>
                executions>
            plugin>
        plugins>
    build>
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1.1.2 方式二

<properties>
    <java.version>1.8java.version>
    <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>
    <project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>
    <spring-boot.version>2.3.7.RELEASEspring-boot.version>
properties>

<dependencies>
    <dependency>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-webartifactId>
    dependency>

    <dependency>
    	<groupId>org.projectlombokgroupId>
    	<artifactId>lombokartifactId>
    	<optional>trueoptional>
    dependency>

      <dependency>
        <groupId>org.springframework.bootgroupId>
        <artifactId>spring-boot-starter-testartifactId>
        <scope>testscope>
    dependency>
dependencies>

<dependencyManagement>
    <dependencies>
        <dependency>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-dependenciesartifactId>
            <version>${spring-boot.version}version>
            <type>pomtype>
            <scope>importscope>
        dependency>
    dependencies>
dependencyManagement>

<build>
    <plugins>
        <plugin>
            <groupId>org.apache.maven.pluginsgroupId>
            <artifactId>maven-compiler-pluginartifactId>
            <version>3.8.1version>
            <configuration>
                <source>1.8source>
                <target>1.8target>
                <encoding>UTF-8encoding>
            configuration>
        plugin>
        <plugin>
            <groupId>org.springframework.bootgroupId>
            <artifactId>spring-boot-maven-pluginartifactId>
            <version>2.3.7.RELEASEversion>
            <configuration>
                <mainClass>com.example.demo33.Demo33ApplicationmainClass>
                
            configuration>
            <executions>
                <execution>
                    <id>repackageid>
                    <goals>
                        <goal>repackagegoal>
                    goals>
                execution>
            executions>
        plugin>
    plugins>
build>
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1.2 启动类

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

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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 {

    @Test
    void contextLoads() {
        System.out.println("你好啊");
    }

}
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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