将fastxml.jackson类重定位到my.package.fastxml.jackson [英] Relocating fastxml.jackson classes to my.package.fastxml.jackson

问题描述

我正在尝试将包从com.fasterxml.jackson重新定位到我自己的包中（即mypackage.com.fasterxml.jackson），然后在我拥有的另一个JAR中使用它。

I'm trying to relocate the packages from "com.fasterxml.jackson" into my own package (ie, "mypackage.com.fasterxml.jackson") and then consume it in another JAR which I own.

我设法使用此配置运行maven-shade插件：

I've managed to run the maven-shade plugin to do it using this configuration:

<plugins>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-shade-plugin</artifactId>
            <executions>
                <execution>
                    <phase>package</phase>
                    <goals>
                        <goal>shade</goal>
                    </goals>
                    <configuration>
                        <shadedArtifactAttached>false</shadedArtifactAttached>
                        <createDependencyReducedPom>true</createDependencyReducedPom>
                        <relocations>
                            <relocation>
                                <pattern>com.fasterxml.jackson</pattern>
                                <shadedPattern>mypackage.com.fasterxml.jackson</shadedPattern>
                            </relocation>
                        </relocations>
                    </configuration>
                </execution>
            </executions>
        </plugin>
    </plugins>

我面临的问题是当我尝试使用它时，由于某些原因Eclipse不断添加对原始jackson（mypackage.com.fasterxml.jackson）的依赖而不是新的。

The problem that I'm facing is when I try to consume it, from some reason Eclipse keeps adding a dependency to the original jackson ("mypackage.com.fasterxml.jackson") and not the new one.

为了清楚起见，我的设置是：
- Jar X在ThirdPartyArtifcats中具有依赖关系。
- ThirdPartyArtifcats引用Jackson并运行maven-shade插件，因此它包含Jackson的修改版本（mypackage.com.fasterxml.jackson）。

Just to be clear, my setup is: - Jar X have a dependency in ThirdPartyArtifcats. - ThirdPartyArtifcats references Jackson and run the maven-shade plugin, thus it contains a modified version of Jackson (mypackage.com.fasterxml.jackson).

我尝试在Jar X中使用Jackson的ObjectMapper，Eclipse不断提供对原始jackson的引用。

When I try to use Jackson's ObjectMapper in Jar X, Eclipse keeps giving a reference to the original jackson.

我将非常感谢你的帮助！

I'll appreciate your help!

推荐答案

最后我使用了JarJar并创建了一个修改过的JAR。然后我已经为我的代码添加了一个依赖项并手动更新它，所以它现在与修改后的包而不是原始包相关。

In the end I've used JarJar and created a modified JAR. Then I've added a dependency to my code and updated it manually so it now relates to the modified package instead of the original package.

这是一个描述我的代码的过程已完成：

Here's a procedure describing what I've done:

在这个例子中，我们将把包从com.fasterxml.jackson改为io.kuku.dependencies.com.fasterxml.jackson。
- 源JAR称为jackson-databind-2.6.4.jar，新的修改（目标）JAR称为kuku-jackson-databind-2.6.4.jar。
- jarjarJAR文件版本为1.4

In this example we'll be changing the package from "com.fasterxml.jackson" to "io.kuku.dependencies.com.fasterxml.jackson". - The source JAR is called "jackson-databind-2.6.4.jar" and new modified (target) JAR is called "kuku-jackson-databind-2.6.4.jar". - The "jarjar" JAR file is in version 1.4

1. 创建rules.txt文件。该文件的内容应该是（观察'@'字符前的句号）：
   rule com.fasterxml.jackson。** io.kuku.dependencies.com.fasterxml.jackson。@ 1

1. Create a "rules.txt" file. The contents of the file should be (watch the period before the '@' character): rule com.fasterxml.jackson.** io.kuku.dependencies.com.fasterxml.jackson.@1

运行以下命令：
java -jar jarjar-1.4.jar process rules.txt jackson-databind-2.6.4.jar kuku-jackson-databind- 2.6.4.jar

Run the following command: java -jar jarjar-1.4.jar process rules.txt jackson-databind-2.6.4.jar kuku-jackson-databind-2.6.4.jar

---

将修改后的JAR安装到本地存储库

在这种情况下，我正在安装位于c：\ my-jars \文件夹中的3个文件。

---

Installing the modified JARs to the local repository

In this case I'm installing 3 files located on "c:\my-jars\" folder.

mvn install：install-file -Dfile = C：\ my-jars\kuku-jackson-annotations-2.6.4.jar -DgroupId = io.kuku.dependencies -DartifactId = kuku-jackson-annotations -Dversion = 2.6.4 -Dpackaging = jar

mvn install:install-file -Dfile=C:\my-jars\kuku-jackson-annotations-2.6.4.jar -DgroupId=io.kuku.dependencies -DartifactId=kuku-jackson-annotations -Dversion=2.6.4 -Dpackaging=jar

mvn install：install-file -Dfile = C：\ my-jars\kuku-jackson-core-2.6 .4.jar -DgroupId = io.kuku.dependencies -DartifactId = kuku-jackson-core -Dversion = 2.6.4 -Dpackaging = jar

mvn install:install-file -Dfile=C:\my-jars\kuku-jackson-core-2.6.4.jar -DgroupId=io.kuku.dependencies -DartifactId=kuku-jackson-core -Dversion=2.6.4 -Dpackaging=jar

mvn install：install- file -Dfile = C：\ my-jars\kuku -jackson-databind-2.6.4.jar -DgroupId = io.kuku.dependencies -DartifactId = kuku-jackson-annotations -Dversion = 2.6.4 -Dpackaging = jar

mvn install:install-file -Dfile=C:\my-jars\kuku-jackson-databind-2.6.4.jar -DgroupId=io.kuku.dependencies -DartifactId=kuku-jackson-annotations -Dversion=2.6.4 -Dpackaging=jar

在这个例子中，这是项目pom中的dependencies元素：

In this example, this is the "dependencies" element in the projects pom:

<dependencies>
<!-- ================================================== -->
<!-- kuku JARs -->
<!-- ================================================== -->
<dependency>
    <groupId>io.kuku.dependencies</groupId>
    <artifactId>kuku-jackson-annotations</artifactId>
    <version>2.6.4</version>
</dependency>
<dependency>
    <groupId>io.kuku.dependencies</groupId>
    <artifactId>kuku-jackson-core</artifactId>
    <version>2.6.4</version>
</dependency>
<dependency>
    <groupId>io.kuku.dependencies</groupId>
    <artifactId>kuku-jackson-databind</artifactId>
    <version>2.6.4</version>
</dependency>

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