Java超实用小组件

雨点打透心脏的1/2处 2022-09-13 05:19 167阅读 0赞

# components #

*  components
    
     *  component-compile：编译
        
         *  maven坐标
         *  使用示例
     *  component-decompile：反编译
        
         *  maven坐标
         *  使用示例
     *  component-decompile：dump出class
        
         *  maven坐标
         *  使用示例

--------------------

## component-compile：编译 ##

### maven坐标 ###

<dependency>
        <groupId>com.idea-aedi</groupId>
        <artifactId>component-compile</artifactId>
        <version>${最新版本}</version>
    </dependency>

### 使用示例 ###

// 全类名-class字节数组
    Map<String, byte[]> byteCodes = Compiler.create().addSource(
            CompilerTest.class.getClassLoader().getResourceAsStream("TestLogger1.java")
            ).buildByteCodes();

更多用法，详见[其它示例][Link 1]，或者直接看源码。

## component-decompile：反编译 ##

### maven坐标 ###

<dependency>
        <groupId>com.idea-aedi</groupId>
        <artifactId>component-decompile</artifactId>
        <version>${最新版本}</version>
    </dependency>

### 使用示例 ###

List<byte[]> list = new ArrayList<>(8);
    list.add(IOUtil.toBytes(new File(decompileDir, "klass/AbstractClassGenerator$ClassLoaderData$1.class")));
    list.add(IOUtil.toBytes(new File(decompileDir, "klass/AbstractClassGenerator$ClassLoaderData.class")));
    list.add(IOUtil.toBytes(new File(decompileDir, "klass/AbstractClassGenerator.class")));
    list.add(IOUtil.toBytes(new File(decompileDir, "klass/AbstractClassGenerator$ClassLoaderData$3.class")));
    list.add(IOUtil.toBytes(new File(decompileDir, "klass/AbstractClassGenerator$Source.class")));
    list.add(IOUtil.toBytes(new File(decompileDir, "klass/AbstractClassGenerator$ClassLoaderData$2.class")));
    /* * 反编译获取源码并解析全类名<br> * @see Decompiler#decompile(List, String) * * @param classByteList * 待反编译的clas * @return <ul> * <li>左 - 全类名<br>形如：com.szlzcl.jdk8feature.OptionalTests.MyConsumer</li> * <li>中 - 源码的classFilePath<br>形如：com/szlzcl/jdk8feature/OptionalTests$MyConsumer.class</li> * <li>右 - 源码<br>注意：反编译失败或找不存要反编译的目标方法时，值为空白字符串</li> * </ul> */
    List<Triple<String, String, String>> triples = Decompiler.defaultDecompiler().decompileAsTriple(list);

更多用法，详见[其它示例][Link 2]，或者直接看源码。

## component-decompile：dump出class ##

### maven坐标 ###

<dependency>
        <groupId>com.idea-aedi</groupId>
        <artifactId>component-dump-class</artifactId>
        <version>${最新版本}</version>
    </dependency>

### 使用示例 ###

// key - 类名, value - class字节码
    Map<String, byte[]> dumpedClasses = NonExitClassFileTransformerExecutor.create("com.ideaaedi.component.dump").exec();
            dumpedClasses.forEach((k, v) -> { 
            System.out.println(k + "\t" + v.length);
            });

更多用法，详见[其它示例][Link 3]，或者直接看源码。

## 相关资料 ##

*  **本文已被收录进[《程序员成长笔记》 ][Link 4]，笔者JustryDeng**

[Link 1]: https://gitee.com/JustryDeng/components/tree/master/component-compile/src/test/java/com/ideaaedi/component/compile
[Link 2]: https://gitee.com/JustryDeng/components/tree/master/component-decompile/src/test/java/com/ideaaedi/component/decompile
[Link 3]: https://gitee.com/JustryDeng/components/tree/master/component-dump-class/src/test/java/com/ideaaedi/component/dump
[Link 4]: https://gitee.com/JustryDeng/notebook