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Merge pull request #13 from septer/master

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Modify ReflectionUtils.java to resolve the reflection problem.
This commit is contained in:
温高铁
2012-08-09 18:17:10 -07:00
parent 81548b0202 ae5099174d
commit 8de4745a96
1 changed files with 40 additions and 54 deletions
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src/main/java/com/alibaba/druid/util/ReflectionUtils.java
+40 -54
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@@ -1,92 +1,78 @@
package com.alibaba.druid.util;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
import javax.servlet.http.HttpServletRequest;
import com.alibaba.druid.support.logging.Log;
import com.alibaba.druid.support.logging.LogFactory;
/**
* @author sandzhang<sandzhangtoo@gmail.com>
*/
public class ReflectionUtils
{
public class ReflectionUtils {
public static Class<?> getClassFromWebContainerOrCurrentClassLoader(String className)
{
private final static Log LOG = LogFactory.getLog(ReflectionUtils.class);
public static Class<?> getClassFromWebContainerOrCurrentClassLoader(String className) {
Class<?> result = null;
try
{
try {
result = HttpServletRequest.class.getClassLoader().loadClass(className);
} catch (ClassNotFoundException e) {
LOG.warn(e.getMessage(), e);
}
catch (ClassNotFoundException e)
{
}
if (result == null)
{
try
{
if (result == null) {
try {
result = Thread.currentThread().getContextClassLoader().loadClass(className);
}
catch (ClassNotFoundException e)
{
} catch (ClassNotFoundException e) {
LOG.warn(e.getMessage(), e);
}
}
return result;
}
public static Object callStaticMethod(Class<?> classObject, String methodName) {
public static Object callStaticMethod(Class<?> classObject, String methodName)
{
try
{
try {
Method m = classObject.getMethod(methodName);
return m.invoke(classObject);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
catch (Exception e)
{
return null;
}
return null;
}
public static Object callObjectMethod(Object obj, String methodName)
{
try
{
Method m = obj.getClass().getMethod(methodName);
return m.invoke(obj);
}
catch (Exception e)
{
return null;
public static Object callObjectMethod(Object obj, String methodName) {
try {
Constructor<?> ctor = ((Class<?>) obj).getConstructor();
Object instance = ctor.newInstance();
Method m = ((Class<?>) obj).getMethod(methodName); // 获取方法
return m.invoke(instance);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
public static Object callObjectMethod(Object obj, String methodName, Object methodParam)
{
try
{
Method m = obj.getClass().getMethod(methodName);
return m.invoke(obj,methodParam);
}
catch (Exception e)
{
return null;
public static Object callObjectMethod(Object obj, String methodName, Object methodParam) {
try {
Constructor<?> ctor = ((Class<?>) obj).getConstructor();
Object instance = ctor.newInstance();
Method m = ((Class<?>) obj).getMethod(methodName, methodParam.getClass()); // 获取方法
return m.invoke(instance);
} catch (Exception e) {
LOG.error(e.getMessage(), e);
}
return null;
}
public void getTest()
{
public void getTest() {
System.out.println("dd");
// return "test";
}
public static void main(String args[])
{
public static void main(String args[]) {
System.out.println(callObjectMethod(new ReflectionUtils(), "getTest"));
}