java代码动态生成java的.class文件

目录 需要包： .......................................................................................................................................... 2 工具类POBu ildUtil ......................................................................................................................... 2 工具类Bu ildUtil .............................................................................................................................. 6 工具类Assistant ............................................................................................................................... 8 RenderClass： ................................................................................................................................ 27 使用例子： .................................................................................................................................... 29 需要包： 1. apache-commons-lang-**.jar 2. asm-**.jar 工具类 POBu ildUtil import java.io.File; import java.io.FileOutputStream; import java.util.Collection; import java.util.Iterator; import org.apache.commons.lang.WordUtils; import org.objectweb.asm.ClassWriter; import org.objectweb.asm.MethodVisitor; import org.objectweb.asm.Opcodes; public class POBuildUtil extends ClassLoader implements Opcodes { public Class build(String clsname,String savepath,Collection properties) { Class cls = null; try { String classname = BuildUtil.transferClassName(clsname); ClassWriter cw = new ClassWriter(false); cw.visit(V1_1, ACC_PUBLIC, classname, null, "java/lang/Object", null); MethodVisitor mw = cw.visitMethod(ACC_PUBLIC, "", "()V", null, null); mw.visitVarInsn(ALOAD, 0); mw.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "", "()V"); mw.visitInsn(RETURN); mw.visitMaxs(1, 1); mw.visitEnd(); BuildProperty property = null; String propertytype = null; String propertyname = null;; Iterator it...