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Java MethodInfo.getCodeAttribute方法代碼示例

本文整理匯總了Java中javassist.bytecode.MethodInfo.getCodeAttribute方法的典型用法代碼示例。如果您正苦於以下問題：Java MethodInfo.getCodeAttribute方法的具體用法？Java MethodInfo.getCodeAttribute怎麽用？Java MethodInfo.getCodeAttribute使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類javassist.bytecode.MethodInfo的用法示例。


在下文中一共展示了MethodInfo.getCodeAttribute方法的15個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的Java代碼示例。

示例1: getParamNames

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
/**
 * 獲取方法的參數名
 * @param clazz  類
 * @param method 方法
 * @return 方法名稱數組
 * @throws NotFoundException .{@link NotFoundException}
 */
public static String[] getParamNames(Class clazz, String method) throws NotFoundException {
    ClassPool pool = ClassPool.getDefault();
    CtClass cc = pool.get(clazz.getName());
    CtMethod cm = cc.getDeclaredMethod(method);
    // 使用javaassist的反射方法獲取方法的參數名
    MethodInfo methodInfo = cm.getMethodInfo();
    CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
    LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
    if (attr == null) {
        throw new NotFoundException("cannot get LocalVariableAttribute");
    }
    String[] paramNames = new String[cm.getParameterTypes().length];
    int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
    for (int i = 0; i < paramNames.length; i++) {
        paramNames[i] = attr.variableName(i + pos);
    }
    return paramNames;
}
開發者ID:DreamYa0，項目名稱:zeratul，代碼行數:26，代碼來源:ReflectionUtils.java

示例2: getParamNames

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
/**
 * get method parameter names
 * @param cls
 * @param method
 * @return
 * @throws Exception
 */
public static String[] getParamNames(Class<?> cls, Method method) throws Exception {
    ClassPool pool = ClassPool.getDefault();
    CtClass cc = pool.get(cls.getName());

    Class<?>[] paramAry = method.getParameterTypes();
    String[] paramTypeNames = new String[paramAry.length];
    for (int i = 0; i < paramAry.length; i++) {
        paramTypeNames[i] = paramAry[i].getName();
    }

    CtMethod cm = cc.getDeclaredMethod(method.getName(), pool.get(paramTypeNames));

    MethodInfo methodInfo = cm.getMethodInfo();
    CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
    LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
    if (attr == null) {
        throw new Exception("class:" + cls.getName() + ", have no LocalVariableTable, please use javac -g:{vars} to compile the source file");
    }
    String[] paramNames = new String[cm.getParameterTypes().length];
    int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
    for (int i = 0; i < paramNames.length; i++) {
        paramNames[i] = attr.variableName(i + pos);
    }
    return paramNames;
}
開發者ID:lemonJun，項目名稱:TakinRPC，代碼行數:33，代碼來源:ClassHelper.java

示例3: transformInvokevirtualsIntoPutAndGetfields

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
private void transformInvokevirtualsIntoPutAndGetfields(ClassFile classfile) throws CannotCompileException, BadBytecode {
	for ( Object o : classfile.getMethods() ) {
		final MethodInfo methodInfo = (MethodInfo) o;
		final String methodName = methodInfo.getName();
		if ( methodName.startsWith( EACH_READ_METHOD_PREFIX )
				|| methodName.startsWith( EACH_WRITE_METHOD_PREFIX )
				|| methodName.equals( GETFIELDHANDLER_METHOD_NAME )
				|| methodName.equals( SETFIELDHANDLER_METHOD_NAME ) ) {
			continue;
		}

		final CodeAttribute codeAttr = methodInfo.getCodeAttribute();
		if ( codeAttr == null ) {
			continue;
		}

		final CodeIterator iter = codeAttr.iterator();
		while ( iter.hasNext() ) {
			int pos = iter.next();
			pos = transformInvokevirtualsIntoGetfields( classfile, iter, pos );
			transformInvokevirtualsIntoPutfields( classfile, iter, pos );
		}
		final StackMapTable smt = MapMaker.make( classPool, methodInfo );
		codeAttr.setAttribute( smt );
	}
}
開發者ID:lamsfoundation，項目名稱:lams，代碼行數:27，代碼來源:FieldTransformer.java

示例4: getParamName

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
/**
 * 獲取方法參數名
 * @param method
 * @return 
 */
public static String[] getParamName(Method method) throws Exception {
	ClassPool pool = ClassPool.getDefault();
	CtClass ctClass = pool.get(method.getDeclaringClass().getName());
	CtMethod ctMethod = ctClass.getDeclaredMethod(method.getName());
	// 使用javassist的反射方法的參數名
	MethodInfo methodInfo = ctMethod.getMethodInfo();
	CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
	LocalVariableAttribute attr = (LocalVariableAttribute) 
		codeAttribute.getAttribute(LocalVariableAttribute.tag);

	int length = ctMethod.getParameterTypes().length;
	String[] array = new String[length];
	for (int i = 0; i < length; i++) {
		array[i] = attr.variableName(i + 1);
	}
	return array;
}
開發者ID:NymphWeb，項目名稱:nymph，代碼行數:23，代碼來源:Javassists.java

示例5: initMethodParamInfo

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
private void initMethodParamInfo(Object controller, String methodName) {
	methodParamInfo = new LinkedHashMap<Class<?>, String>();
	Class<?> clazz = controller.getClass();
	try {
		ClassPool classPool = ClassPool.getDefault();
		classPool.insertClassPath(new ClassClassPath(clazz));
		CtClass ctClass = classPool.get(clazz.getName());
		CtMethod ctMethod = ctClass.getDeclaredMethod(methodName);

		MethodInfo methodInfo = ctMethod.getMethodInfo();
		CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
		LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute
				.getAttribute("LocalVariableTable");

		CtClass[] parameterTypes = ctMethod.getParameterTypes();
		int pos = Modifier.isStatic(ctMethod.getModifiers()) ? 0 : 1;
		for (int i = 0; i < parameterTypes.length; i++)
			methodParamInfo.put(Class.forName(parameterTypes[i].getName()),
					attr.variableName(i + pos));
	} catch (Exception e) {
		throw new RuntimeException(e.getMessage());
	}
}
開發者ID:lihengming，項目名稱:potato-webmvc，代碼行數:24，代碼來源:HandlerMethodArgsBuilder.java

示例6: getMethodArgNames

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
/**
 * Get method arg names.
 *
 * @param clazz
 * @param methodName
 * @return
 */
public static <T> String[] getMethodArgNames(Class<T> clazz, String methodName) {
    try {
        ClassPool pool = ClassPool.getDefault();
        CtClass cc = pool.get(clazz.getName());

        CtMethod cm = cc.getDeclaredMethod(methodName);

        // 使用javaassist的反射方法獲取方法的參數名
        MethodInfo methodInfo = cm.getMethodInfo();
        CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
        LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
        if (attr == null) {
            throw new RuntimeException("LocalVariableAttribute of method is null! Class " + clazz.getName() + ",method name is " + methodName);
        }
        String[] paramNames = new String[cm.getParameterTypes().length];
        int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
        for (int i = 0; i < paramNames.length; i++)
            paramNames[i] = attr.variableName(i + pos);

        return paramNames;
    } catch (NotFoundException e) {
        throw new RuntimeException(e.getMessage(), e);
    }
}
開發者ID:KoperGroup，項目名稱:koper，代碼行數:32，代碼來源:ReflectUtil.java

示例7: getMethodVariableName

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
/**
 * Get method variable names for the provided method.
 * 
 * @param classname String
 * @param methodname String
 * @return the String[] of method variable name.
 */
public static String[] getMethodVariableName(String classname, String methodname) {
  try {
    ClassPool pool = ClassPool.getDefault();
    CtClass cc = pool.get(classname);
    CtMethod cm = cc.getDeclaredMethod(methodname);
    MethodInfo methodInfo = cm.getMethodInfo();
    CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
    String[] paramNames = new String[cm.getParameterTypes().length];
    LocalVariableAttribute attr =
        (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
    if (attr != null) {
      int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
      for (int i = 0; i < paramNames.length; i++) {
        paramNames[i] = attr.variableName(i + pos);
      }
      return paramNames;
    }
  } catch (Exception e) {
    throw new RuntimeException(e);
  }
  return null;
}
開發者ID:benson-git，項目名稱:ibole-microservice，代碼行數:30，代碼來源:ClassHelper.java

示例8: scan

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
public Subroutine[] scan(MethodInfo method) throws BadBytecode {
    CodeAttribute code = method.getCodeAttribute();
    CodeIterator iter = code.iterator();

    subroutines = new Subroutine[code.getCodeLength()];
    subTable.clear();
    done.clear();

    scan(0, iter, null);

    ExceptionTable exceptions = code.getExceptionTable();
    for (int i = 0; i < exceptions.size(); i++) {
        int handler = exceptions.handlerPc(i);
        // If an exception is thrown in subroutine, the handler
        // is part of the same subroutine.
        scan(handler, iter, subroutines[exceptions.startPc(i)]);
    }

    return subroutines;
}
開發者ID:AndreJCL，項目名稱:JCL，代碼行數:21，代碼來源:SubroutineScanner.java

示例9: getBehaviourBytecode

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
/**
 * This is basically the InstructionPrinter.getMethodBytecode but with a
 * CtBehaviour parameter instead of a CtMethod
 * 
 * @param behavior
 * @return
 */
public static String getBehaviourBytecode(CtBehavior behavior) {
    MethodInfo info = behavior.getMethodInfo2();
    CodeAttribute code = info.getCodeAttribute();
    if (code == null) {
        return "";
    }

    ConstPool pool = info.getConstPool();
    StringBuilder sb = new StringBuilder(1024);

    CodeIterator iterator = code.iterator();
    while (iterator.hasNext()) {
        int pos;
        try {
            pos = iterator.next();
        } catch (BadBytecode e) {
            throw new JVoidIntrumentationException("BadBytecoode", e);
        }

        sb.append(pos + ": " + InstructionPrinter.instructionString(iterator, pos, pool) + "\n");
    }
    return sb.toString();
}
開發者ID:jVoid，項目名稱:jVoid，代碼行數:31，代碼來源:JavassistUtils.java

示例10: getReflectParamName

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
public static String[] getReflectParamName(Class<?> clazz, String methodName) {
	String[] paramNames = null;
	try {
		ClassPool pool = ClassPool.getDefault();
		CtClass cc = pool.get(clazz.getName());
		CtMethod cm = cc.getDeclaredMethod(methodName);
		// 使用javaassist的反射方法獲取方法的參數名
		MethodInfo methodInfo = cm.getMethodInfo();
		CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
		LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
		if (attr == null) {
			// exception
		}
		paramNames = new String[cm.getParameterTypes().length];
		int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
		for (int i = 0; i < paramNames.length; i++)
			paramNames[i] = attr.variableName(i + pos);
	} catch (NotFoundException e) {
		e.printStackTrace();
	}
	return paramNames;
}
開發者ID:East196，項目名稱:maker，代碼行數:23，代碼來源:Classes.java

示例11: getMethodArgNames

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
/**
 * 通過Javaassist獲取方法的參數名
 */
public static String[] getMethodArgNames(String className, String methodName){
    List<String> names = new ArrayList<String>();
    try {
        ClassPool classPool = ClassPool.getDefault();
        classPool.insertClassPath(new ClassClassPath(ReflectUtil.class));
        CtClass ctClass = classPool.getCtClass(className);
        CtMethod method = ctClass.getDeclaredMethod(methodName);
        MethodInfo methodInfo = method.getMethodInfo();
        CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
        LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
        if (attr == null)  {
            return (String[])names.toArray();
        }
        int argNum = method.getParameterTypes().length;
        int pos = javassist.Modifier.isStatic(method.getModifiers()) ? 0 : 1;
        for (int i=0; i<argNum; i++) {
            names.add(attr.variableName(i + pos));
        }
    } catch (NotFoundException e) {
        log.error(e);
    }
    return names.toArray(new String[0]);
}
開發者ID:nullcodeexecutor，項目名稱:rural，代碼行數:27，代碼來源:ReflectUtil.java

示例12: tes

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
static void tes() throws NotFoundException {
    ClassPool classPool = ClassPool.getDefault();
    CtClass ctClass = classPool.get("org.rural.test.Test");
    CtMethod[] methods = ctClass.getDeclaredMethods();
    for(CtMethod method : methods){
        MethodInfo methodInfo = method.getMethodInfo();
        CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
        LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute.getAttribute(LocalVariableAttribute.tag);
        if (attr == null)  {
            return;
        }
        String[] paramNames = new String[method.getParameterTypes().length];
        int pos = Modifier.isStatic(method.getModifiers()) ? 0 : 1;
        for (int i = 0; i < paramNames.length; i++)
            paramNames[i] = attr.variableName(i + pos);
    }
}
開發者ID:nullcodeexecutor，項目名稱:rural，代碼行數:18，代碼來源:JavaassistTest.java

示例13: getLocalVariableAttribute

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
public static LocalVariableAttribute getLocalVariableAttribute(String className, String methodName) throws NotFoundException {
	ClassPool clsPool = ClassPool.getDefault();
	
	CtClass ctCls = clsPool.get(className);
	CtMethod[] ctMethods = ctCls.getMethods();
	CtMethod ctMethod = null;
	
	for(CtMethod methodTmp : ctMethods) {
		if(methodTmp.getName().equals(methodName)
				&& (methodTmp.getModifiers() & Modifier.PUBLIC) != 0
				) {
			ctMethod = methodTmp;
			break;
		}
	}

	MethodInfo methodInfo = ctMethod.getMethodInfo();
	CodeAttribute codeAttr = methodInfo.getCodeAttribute();
	LocalVariableAttribute localVarAttr = (LocalVariableAttribute) codeAttr.getAttribute(LocalVariableAttribute.tag);

	return localVarAttr;
}
開發者ID:SalamaSoft，項目名稱:REST-framework，代碼行數:23，代碼來源:JavaAssistUtil.java

示例14: lookupLocalVariableAttribute

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
/**
 * get LocalVariableAttribute
 *
 * @param method
 * @return null if the class is not compiled with debug option
 */
public static LocalVariableAttribute lookupLocalVariableAttribute(CtBehavior method) {
    if (method == null) {
        throw new NullPointerException("method must not be null");
    }
    MethodInfo methodInfo = method.getMethodInfo2();
    CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
    
    if (codeAttribute == null) {
        return null;
    }
    
    AttributeInfo localVariableTable = codeAttribute.getAttribute(LocalVariableAttribute.tag);
    LocalVariableAttribute local = (LocalVariableAttribute) localVariableTable;
    return local;
}
開發者ID:naver，項目名稱:pinpoint，代碼行數:22，代碼來源:JavaAssistUtils.java

示例15: testReflectParamName

import javassist.bytecode.MethodInfo; //導入方法依賴的package包/類
/**
   * 反射獲取方法參數名稱
   */
  public static void testReflectParamName() {
Class clazz = MyClass.class;
      try {
          ClassPool pool = ClassPool.getDefault();
          CtClass cc = pool.get(clazz.getName());
          CtMethod cm = cc.getDeclaredMethod("concatString");

          // 使用javaassist的反射方法獲取方法的參數名
          MethodInfo methodInfo = cm.getMethodInfo();
          CodeAttribute codeAttribute = methodInfo.getCodeAttribute();
          LocalVariableAttribute attr = (LocalVariableAttribute) codeAttribute
                  .getAttribute(LocalVariableAttribute.tag);
          if (attr == null) {
              // exception
          }
          String[] paramNames = new String[cm.getParameterTypes().length];
          int pos = Modifier.isStatic(cm.getModifiers()) ? 0 : 1;
          for (int i = 0; i < paramNames.length; i++)
              paramNames[i] = attr.variableName(i + pos);
          // paramNames即參數名
          for (int i = 0; i < paramNames.length; i++) {
              System.out.println("參數名" + i + ":" + paramNames[i]);
          }

      } catch (NotFoundException e) {
          e.printStackTrace();
      }
  }
開發者ID:chenmins，項目名稱:objector，代碼行數:32，代碼來源:Test.java


注：本文中的javassist.bytecode.MethodInfo.getCodeAttribute方法示例由純淨天空整理自Github/MSDocs等開源代碼及文檔管理平台，相關代碼片段篩選自各路編程大神貢獻的開源項目，源碼版權歸原作者所有，傳播和使用請參考對應項目的License；未經允許，請勿轉載。