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IntelliJ IDEA 2023
jar 包
文件(File) -> 项目结构(Project Structure) -> 项目设置(Project Settings) -> 工件(Airifacts) -> + -> jar -> 来自依赖
- 主类(需要 jar 包默认可执行时,需输入指定名称)
- +包含测试(否则无法执行主类的 main)
- 来自库的 jar 文件 -> 提取到目标(打包成一个文件, Extract to the Taget JAR),复制到输出...(多个文件),该选项后面的“输出布局”中可以在主类中选择“类路径”,实现将相关 jar 包放在不同目录的效果。
无法在 src 下建立类文件
文件 -> 项目结构 -> 项目设置 -> 模块
源:将 src 标识为源代码,将 target 标记为排除 将 src/main 也标识为 source,引用包体可以省略为:import com.udf.base.CNF(main.com.udf...) 将 src/test 标识为测试
java 不支持发行版本 7
可以在 idea Java编译器配置中修改,但会被 pom 覆盖。
# pom.xml <build> <plugins> <plugin> <configuration> <source>1.8</source> <target>1.8</target> </configuration> </plugin> </plugins> </build>
POM
<?xml version="1.0" encoding="UTF-8"?> <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.aaa.udef</groupId> <artifactId>udefapi</artifactId> <version>1.0.0</version> <name>udef-api</name> <url>http://www.mwbbs.tk</url> <description>UDF API Class</description> <packaging>jar</packaging> <properties> <udf.version>1.0.0</udf.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <maven-jar-plugin.version>3.1.1</maven-jar-plugin.version> </properties> <dependencies> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-api</artifactId> <version>2.0.9</version> </dependency> <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-log4j12</artifactId> <version>2.0.9</version> </dependency> </dependencies> <build> <finalName>test</finalName> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.1</version> <configuration> <source>1.22</source> <target>1.22</target> <encoding>${project.build.sourceEncoding}</encoding> </configuration> </plugin> </plugins> </build> </project>
依赖声明
<dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>8.0.33</version> </dependency> <dependency> <groupId>com.h2database</groupId> <artifactId>h2</artifactId> <version>2.2.224</version> </dependency> <dependency> <groupId>com.google.code.gson</groupId> <artifactId>gson</artifactId> <version>2.8.9</version> </dependency> <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka-clients</artifactId> <version>2.0.0</version> </dependency> <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka_2.11</artifactId> <version>0.10.0.1</version> </dependency> <dependency> <groupId>org.apache.kafka</groupId> <artifactId>kafka-streams</artifactId> <version>1.0.0</version> </dependency>