eclipse-maven引入jar(7)

2017-08-24  本文已影响0人  又是那一片天
在pom.xml中的dependencies元素添加dependency(坐标)对应jar就可以了
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>

        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.8.2</version>
        </dependency>
        <dependency>
            <groupId>com.fasterxml.jackson.core</groupId>
            <artifactId>jackson-databind</artifactId>
            <version>2.9.0</version>
        </dependency>

    </dependencies>

依赖范围 scope元素指定范围

        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
依赖传递性 :依赖的坐标引用其他坐标会被传递
当引入jar相同时:
选择性依赖
        <dependency>
            <groupId>org.apache.logging.log4j</groupId>
            <artifactId>log4j-core</artifactId>
            <version>2.8.2</version>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>chenjiuxu</groupId>
            <artifactId>etWED</artifactId>
            <version>0.0.1-SNAPSHOT</version>
            <exclusions>
                <exclusion>
                    <groupId>org.apache.logging.log4j</groupId>
                    <artifactId>log4j-core</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
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