java读取zip/jar包中文件的几种方式

private static void readZipFile() {
    try (ZipFile zipFile = new ZipFile("/data/testzip.zip");) {
	    Enumeration<? extends ZipEntry> entries = zipFile.entries();
         while(entries.hasMoreElements()){
             ZipEntry entry = entries.nextElement();
		 System.out.println("fileName:"+entry.getName()); //文件名
		 InputStream stream = zipFile.getInputStream(entry); //读取文件内容
		 read(stream);
         }
    } catch(Exception e) {}
	//zipFile.close();
}
private static void read(InputStream in) { 
    try (InputStreamReader reader = new InputStreamReader(in, "UTF-8");
         BufferedReader br = new BufferedReader(reader);) {
         String con = null;
	      while ((con = br.readLine()) != null) {
	          System.out.println(con);
	      }
    } catch (Exception e) {}
}

private static InputStream getInputStream() throws FileNotFoundException {
	File file = new File("/data/testzip.zip");
	InputStream in = new FileInputStream(file);
	return in;
}
//错误方法
private static void readZipInputStream() throws FileNotFoundException, IOException {
	InputStream zippedIn = getInputStream(); // zip压缩文件流
	ZipInputStream zis = new ZipInputStream(zippedIn);
	read(zis); //读取的是空
}
//正确方法
private static void readZipInputStream2() throws FileNotFoundException, IOException {
	InputStream zipFileInput = getInputStream(); // zip压缩文件流
	ZipInputStream zis = new ZipInputStream(zipFileInput);
	ZipEntry entry = null;
	try {
		while ((entry = zis.getNextEntry()) != null) {
			try {
				final String name = entry.getName();
				System.out.println("fileName:"+name);
				String content = IOUtils.toString(zis);
				System.out.println(content);
			} finally {
				zis.closeEntry(); // 关闭zipEntry
			}
		}
	} finally {
		zis.close(); //关闭zipInputStream
	}
}

static void test1() {
    String path = "/Users/liuxiao/maven-rep/org/apache/thrift/libthrift/0.9.0/libthrift-0.9.0.jar";
    try (JarFile jarFile = new JarFile(new File(path));) {
        Enumeration<JarEntry> entries = jarFile.entries();
        while (entries.hasMoreElements()) {
            JarEntry entry = entries.nextElement();
            String entryName = entry.getName();
            if (!entry.isDirectory() && entryName.equals("org/apache/thrift/TBase.java")) {
                System.out.println(entryName);//  org/apache/thrift/EncodingUtils.class
                read(jarFile.getInputStream(entry));
            }
        }
    } catch (Exception e) {
    }
    //使用stream api
try (Stream<JarEntry> stream = new JarFile(new File(path)).stream();) {
        stream
            .filter(entry -> !entry.isDirectory() && entry.getName().endsWith(".class"))
            .forEach(entry -> System.out.println(entry.getName()));
    } catch(Exception e) {
    }
}

private static InputStream getJarFileInputStream() throws FileNotFoundException {
	File file = new File("/data/mvn_repo/commons-lang/commons-lang/2.1/commons-lang-2.1.jar");
	InputStream in = new FileInputStream(file);
	return in;
}
private static void readJarInputStream2() throws FileNotFoundException, IOException {
	InputStream zipFileInput = getJarFileInputStream(); // jar包流
	JarInputStream jis = new JarInputStream(zipFileInput);
	JarEntry entry = null;
	try {
		while ((entry = jis.getNextJarEntry()) != null) {
			try {
				if (entry.isDirectory()) {
					continue;
				}
				final String name = entry.getName();
				System.out.println("fileName:"+name);
				String content = IOUtils.toString(jis);
				System.out.println(content);
			} finally {
				jis.closeEntry(); // 关闭zipEntry
			}
		}
	} finally {
		jis.close(); //关闭zipInputStream
	}
}

static void test2() throws Exception {
	String filePath = "/Users/liuxiao/maven-rep/org/apache/thrift/libthrift/0.9.0/libthrift-0.9.0.jar";
	String name = "org/apache/thrift/TBase.java";
	URL url = new URL("jar:file:" + filePath + "!/" + name);
	JarURLConnection jarConnection = (JarURLConnection) url.openConnection();
	try (InputStream in = jarConnection.getInputStream();
			BufferedReader br = new BufferedReader(new InputStreamReader(in, "UTF-8"));) {
		String con = null;
		while ((con = br.readLine()) != null) {
			System.out.println(con);
		}
	} catch (Exception e) {
		e.printStackTrace();
	}
}