java 编译 打包

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Arrays;
import java.util.jar.Attributes;
import java.util.jar.JarEntry;
import java.util.jar.JarOutputStream;
import java.util.jar.Manifest;


import javax.tools.DiagnosticCollector;
import javax.tools.JavaCompiler;
import javax.tools.StandardJavaFileManager;
import javax.tools.StandardLocation;
import javax.tools.ToolProvider;


public class TestCompiler {


public static void main(String[] args) {
try {


System.getProperties().store(System.out, "");


JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
DiagnosticCollector diagnostics = new DiagnosticCollector();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(diagnostics, null, null);
String fileName = "D:/test/Test.java";


File file = new File( fileName);
File[] outputs = new File[]{new File("d:/test/bin")};
fileManager.setLocation(StandardLocation.CLASS_OUTPUT,  Arrays.asList(outputs));
Iterable compilationUnits = fileManager.getJavaFileObjectsFromStrings(Arrays.asList(file.getAbsolutePath()));
JavaCompiler.CompilationTask task = compiler.getTask(null, fileManager, diagnostics, null, null, compilationUnits);
boolean success = task.call();
fileManager.close();
System.out.println((success) ? "编译成功" : "编译失败");

jar();
System.out.println(System.getProperty("java.io.tmpdir"));
} catch (Exception e) {
e.printStackTrace();
}
}

public static void jar(){
FileOutputStream fos = null ;
FileInputStream fis = null ;
try {
fos = new FileOutputStream(new File("d:/test/test.jar"));
fis = new FileInputStream(new File("d:/test/bin/test.class"));
Manifest manifest = new Manifest();
Attributes version = new Attributes();
manifest.getMainAttributes().putValue("Manifest-Version", "1.1");
manifest.getMainAttributes().putValue("Class-Path", ".");
manifest.getMainAttributes().putValue("Main-Class", "Test");

JarOutputStream jos = new JarOutputStream(fos,manifest);
JarEntry jarEntry = new JarEntry("Test.class");
jos.putNextEntry(jarEntry);
byte[] data = new byte[1024];
int endIndex = 0;
while( (endIndex = fis.read(data)) > 0 ){
jos.write(data , 0 , endIndex);
System.out.println(data.length);
}
jos.closeEntry();
jos.close();
} catch (IOException e) {
e.printStackTrace();
}

}
}