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Merge pull request #12 from septer/master

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refactor  DruidStatManagerFacade.java
This commit is contained in:
温高铁
2012-08-09 03:57:25 -07:00
parent ff91ee541d fa714a0be2
commit 0e13740969
7 changed files with 411 additions and 263 deletions
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src/main/java/com/alibaba/druid/stat/DruidDataSourceStatDefaultStrategy.java
+204
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@@ -0,0 +1,204 @@
package com.alibaba.druid.stat;
import java.sql.Driver;
import java.sql.DriverManager;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.management.JMException;
import com.alibaba.druid.VERSION;
import com.alibaba.druid.pool.DruidDataSource;
public class DruidDataSourceStatDefaultStrategy implements DruidDataSourceStatStrategy {
private Set<DruidDataSource> getDruidDataSourceInstances() {
return DruidDataSourceStatManager.getDruidDataSourceInstances();
}
public void resetDataSourceStat() {
DruidDataSourceStatManager.getInstance().reset();
}
public void resetSqlStat() {
JdbcStatManager.getInstance().reset();
}
public void resetAll() {
resetSqlStat();
resetDataSourceStat();
}
private JdbcSqlStat getSqlStatById(Integer id) {
for (DruidDataSource ds : getDruidDataSourceInstances()) {
JdbcSqlStat sqlStat = ds.getDataSourceStat().getSqlStat(id);
if (sqlStat != null)
return sqlStat;
}
return null;
}
public Map<String, Object> getDataSourceStatData(Integer id) {
if (id == null) {
return null;
}
DruidDataSource datasource = getDruidDataSourceById(id);
return datasource == null ? null : dataSourceToMapData(datasource);
}
private DruidDataSource getDruidDataSourceById(Integer identity) {
if (identity == null) {
return null;
}
for (DruidDataSource datasource : getDruidDataSourceInstances()) {
if (System.identityHashCode(datasource) == identity) {
return datasource;
}
}
return null;
}
public List<Map<String, Object>> getSqlStatDataList() {
List<Map<String, Object>> result = new ArrayList<Map<String, Object>>();
for (DruidDataSource datasource : getDruidDataSourceInstances()) {
for (JdbcSqlStat sqlStat : datasource.getDataSourceStat().getSqlStatMap().values()) {
if (sqlStat.getExecuteCount() == 0 && sqlStat.getRunningCount() == 0) {
continue;
}
result.add(getSqlStatData(sqlStat));
}
}
return result;
}
public Map<String, Object> getSqlStatData(Integer id) {
if (id == null) {
return null;
}
JdbcSqlStat sqlStat = getSqlStatById(id);
return sqlStat == null ? null : getSqlStatData(sqlStat);
}
private Map<String, Object> getSqlStatData(JdbcSqlStat sqlStat) {
try {
return sqlStat.getData();
} catch (JMException e) {
}
return null;
}
public List<Object> getDataSourceStatList() {
List<Object> datasourceList = new ArrayList<Object>();
for (DruidDataSource dataSource : getDruidDataSourceInstances()) {
datasourceList.add(dataSourceToMapData(dataSource));
}
return datasourceList;
}
public Map<String, Object> returnJSONBasicStat() {
Map<String, Object> dataMap = new LinkedHashMap<String, Object>();
dataMap.put("Version", VERSION.getVersionNumber());
dataMap.put("Drivers", getDriversData());
return dataMap;
}
private List<String> getDriversData() {
List<String> drivers = new ArrayList<String>();
for (Enumeration<Driver> e = DriverManager.getDrivers(); e.hasMoreElements();) {
Driver driver = e.nextElement();
drivers.add(driver.getClass().getName());
}
return drivers;
}
public List<Map<String, Object>> getPoolingConnectionInfoByDataSourceId(Integer id) {
DruidDataSource datasource = getDruidDataSourceById(id);
if (datasource == null)
return null;
return datasource.getPoolingConnectionInfo();
}
public List<String> getActiveConnectionStackTraceByDataSourceId(Integer id) {
DruidDataSource datasource = getDruidDataSourceById(id);
if (datasource == null || !datasource.isRemoveAbandoned())
return null;
return datasource.getActiveConnectionStackTrace();
}
private Map<String, Object> dataSourceToMapData(DruidDataSource dataSource) {
Map<String, Object> dataMap = new LinkedHashMap<String, Object>();
dataMap.put("Identity", System.identityHashCode(dataSource));
dataMap.put("Name", dataSource.getName());
dataMap.put("DbType", dataSource.getDbType());
dataMap.put("DriverClassName", dataSource.getDriverClassName());
dataMap.put("URL", dataSource.getUrl());
dataMap.put("UserName", dataSource.getUsername());
dataMap.put("FilterClassNames", dataSource.getFilterClassNames());
dataMap.put("WaitThreadCount", dataSource.getWaitThreadCount());
dataMap.put("NotEmptyWaitCount", dataSource.getNotEmptyWaitCount());
dataMap.put("NotEmptyWaitMillis", dataSource.getNotEmptyWaitMillis());
dataMap.put("PoolingCount", dataSource.getPoolingCount());
dataMap.put("PoolingPeak", dataSource.getPoolingPeak());
dataMap.put("PoolingPeakTime", dataSource.getPoolingPeakTime() == null ? null : dataSource.getPoolingPeakTime().toString());
dataMap.put("ActiveCount", dataSource.getActiveCount());
dataMap.put("ActivePeak", dataSource.getActivePeak());
dataMap.put("ActivePeakTime", dataSource.getActivePeakTime() == null ? null : dataSource.getActivePeakTime().toString());
dataMap.put("InitialSize", dataSource.getInitialSize());
dataMap.put("MinIdle", dataSource.getMinIdle());
dataMap.put("MaxActive", dataSource.getMaxActive());
dataMap.put("QueryTimeout", dataSource.getQueryTimeout());
dataMap.put("TransactionQueryTimeout", dataSource.getTransactionQueryTimeout());
dataMap.put("LoginTimeout", dataSource.getLoginTimeout());
dataMap.put("ValidConnectionCheckerClassName", dataSource.getValidConnectionCheckerClassName());
dataMap.put("ExceptionSorterClassName", dataSource.getExceptionSorterClassName());
dataMap.put("TestOnBorrow", dataSource.isTestOnBorrow());
dataMap.put("TestOnReturn", dataSource.isTestOnReturn());
dataMap.put("TestWhileIdle", dataSource.isTestWhileIdle());
dataMap.put("DefaultAutoCommit", dataSource.isDefaultAutoCommit());
dataMap.put("DefaultReadOnly", dataSource.isDefaultAutoCommit());
dataMap.put("DefaultTransactionIsolation", dataSource.getDefaultTransactionIsolation());
dataMap.put("LogicConnectCount", dataSource.getConnectCount());
dataMap.put("LogicCloseCount", dataSource.getCloseCount());
dataMap.put("LogicConnectErrorCount", dataSource.getConnectErrorCount());
dataMap.put("PhysicalConnectCount", dataSource.getCreateCount());
dataMap.put("PhysicalCloseCount", dataSource.getDestroyCount());
dataMap.put("PhysicalConnectErrorCount", dataSource.getCreateErrorCount());
dataMap.put("ExecuteCount", dataSource.getExecuteCount());
dataMap.put("ErrorCount", dataSource.getErrorCount());
dataMap.put("CommitCount", dataSource.getCommitCount());
dataMap.put("RollbackCount", dataSource.getRollbackCount());
dataMap.put("PSCacheAccessCount", dataSource.getCachedPreparedStatementAccessCount());
dataMap.put("PSCacheHitCount", dataSource.getCachedPreparedStatementHitCount());
dataMap.put("PSCacheMissCount", dataSource.getCachedPreparedStatementMissCount());
dataMap.put("StartTransactionCount", dataSource.getStartTransactionCount());
dataMap.put("TransactionHistogram", dataSource.getTransactionHistogramValues());
dataMap.put("ConnectionHoldTimeHistogram", dataSource.getDataSourceStat().getConnectionHoldHistogram().toArray());
dataMap.put("RemoveAbandoned", dataSource.isRemoveAbandoned());
return dataMap;
}
}
src/main/java/com/alibaba/druid/stat/DruidDataSourceStatJNDIStatStrategy.java
+53
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@@ -0,0 +1,53 @@
package com.alibaba.druid.stat;
import java.util.List;
import java.util.Map;
import com.alibaba.druid.util.ReflectionUtils;
public class DruidDataSourceStatJNDIStatStrategy implements DruidDataSourceStatStrategy{
private Object getStrategyB() {
return ReflectionUtils.getClassFromWebContainerOrCurrentClassLoader("com.alibaba.druid.stat.DruidDataSourceStatDefaultStrategy");
}
@SuppressWarnings("unchecked")
public Map<String, Object> getSqlStatData(Integer id) {
return (Map<String, Object>) ReflectionUtils.callObjectMethod(getStrategyB(), "getSqlStatData", id);
}
@SuppressWarnings("unchecked")
public List<Map<String, Object>> getSqlStatDataList() {
return (List<Map<String, Object>>) ReflectionUtils.callObjectMethod(getStrategyB(), "getSqlStatDataList");
}
@SuppressWarnings("unchecked")
public List<String> getActiveConnectionStackTraceByDataSourceId(Integer id) {
return (List<String>) ReflectionUtils.callObjectMethod(getStrategyB(), "getActiveConnectionStackTraceByDataSourceId", id);
}
@SuppressWarnings("unchecked")
public Map<String, Object> returnJSONBasicStat() {
return (Map<String, Object>) ReflectionUtils.callObjectMethod(getStrategyB(), "returnJSONBasicStat");
}
@SuppressWarnings("unchecked")
public List<Object> getDataSourceStatList() {
return (List<Object>) ReflectionUtils.callObjectMethod(getStrategyB(), "getDataSourceStatList");
}
@SuppressWarnings("unchecked")
public Map<String, Object> getDataSourceStatData(Integer id) {
return (Map<String, Object>) ReflectionUtils.callObjectMethod(getStrategyB(), "getDataSourceStatData", id);
}
@SuppressWarnings("unchecked")
public List<Map<String, Object>> getPoolingConnectionInfoByDataSourceId(Integer id) {
return (List<Map<String, Object>>) ReflectionUtils.callObjectMethod(getStrategyB(), "getPoolingConnectionInfoByDataSourceId", id);
}
public void resetAll() {
ReflectionUtils.callObjectMethod(getStrategyB(), "resetAll");
}
}
src/main/java/com/alibaba/druid/stat/DruidDataSourceStatStrategy.java
+22
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@@ -0,0 +1,22 @@
package com.alibaba.druid.stat;
import java.util.List;
import java.util.Map;
public interface DruidDataSourceStatStrategy {
public Map<String, Object> getSqlStatData(Integer id);
public List<Map<String, Object>> getSqlStatDataList();
public List<String> getActiveConnectionStackTraceByDataSourceId(Integer id);
public Map<String, Object> returnJSONBasicStat();
public List<Object> getDataSourceStatList();
public Map<String, Object> getDataSourceStatData(Integer id);
public List<Map<String, Object>> getPoolingConnectionInfoByDataSourceId(Integer id);
public void resetAll();
}
src/main/java/com/alibaba/druid/stat/DruidDataSourceStatStrategyContext.java
+44
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@@ -0,0 +1,44 @@
package com.alibaba.druid.stat;
import java.util.List;
import java.util.Map;
public class DruidDataSourceStatStrategyContext {
private DruidDataSourceStatStrategy druidDataSourceStatStrategy;
public DruidDataSourceStatStrategyContext(DruidDataSourceStatStrategy druidDataSourceStatStrategy) {
this.druidDataSourceStatStrategy = druidDataSourceStatStrategy;
}
public Map<String, Object> getSqlStatData(Integer id) {
return druidDataSourceStatStrategy.getSqlStatData(id);
}
public List<Map<String, Object>> getSqlStatDataList() {
return druidDataSourceStatStrategy.getSqlStatDataList();
}
public List<String> getActiveConnectionStackTraceByDataSourceId(Integer id) {
return druidDataSourceStatStrategy.getActiveConnectionStackTraceByDataSourceId(id);
}
public Map<String, Object> returnJSONBasicStat() {
return druidDataSourceStatStrategy.returnJSONBasicStat();
}
public List<Object> getDataSourceStatList() {
return druidDataSourceStatStrategy.getDataSourceStatList();
}
public Map<String, Object> getDataSourceStatData(Integer id) {
return druidDataSourceStatStrategy.getDataSourceStatData(id);
}
public List<Map<String, Object>> getPoolingConnectionInfoByDataSourceId(Integer id) {
return druidDataSourceStatStrategy.getPoolingConnectionInfoByDataSourceId(id);
}
public void resetAll() {
druidDataSourceStatStrategy.resetAll();
}
}
src/main/java/com/alibaba/druid/stat/DruidStatManagerFacade.java
+36 -248
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@@ -1,20 +1,7 @@
package com.alibaba.druid.stat;
import java.sql.Driver;
import java.sql.DriverManager;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.locks.ReentrantLock;
import javax.management.JMException;
import com.alibaba.druid.VERSION;
import com.alibaba.druid.pool.DruidDataSource;
import com.alibaba.druid.util.ReflectionUtils;
/**
* 监控相关的对外数据暴露
@@ -28,252 +15,53 @@ import com.alibaba.druid.util.ReflectionUtils;
*/
public class DruidStatManagerFacade {
private final static DruidStatManagerFacade instance = new DruidStatManagerFacade();
private final static DruidStatManagerFacade instance = new DruidStatManagerFacade();
private boolean inited = false;
private static DruidDataSourceStatStrategyContext ctx = null;
protected final ReentrantLock lock = new ReentrantLock(true);
private static DruidDataSourceStatStrategy strategy = null;
private Object druidDataSourceStatManager;
private Object jdbcStatManager;
static {
strategy = new DruidDataSourceStatJNDIStatStrategy();
ctx = new DruidDataSourceStatStrategyContext(strategy);
}
// TODO shoud be Object
private Set<DruidDataSource> datasourceInstances;
private DruidStatManagerFacade() {
}
private DruidStatManagerFacade() {
}
public static DruidStatManagerFacade getInstance() {
return instance;
}
public static DruidStatManagerFacade getInstance() {
return instance;
}
public Map<String, Object> getSqlStatData(Integer id) {
return ctx.getSqlStatData(id);
}
private void init() {
if (inited) {
return;
}
public List<Map<String, Object>> getSqlStatDataList() {
return ctx.getSqlStatDataList();
}
lock.lock();
try {
if (inited) {
return;
}
public List<String> getActiveConnectionStackTraceByDataSourceId(Integer id) {
return ctx.getActiveConnectionStackTraceByDataSourceId(id);
}
initByClassLoader();
public Map<String, Object> returnJSONBasicStat() {
return ctx.returnJSONBasicStat();
}
inited = true;
} finally {
lock.unlock();
}
}
public List<Object> getDataSourceStatList() {
return ctx.getDataSourceStatList();
}
@SuppressWarnings("unchecked")
private void initByClassLoader() {
Class<?> druidDataSourceStatManagerClass = ReflectionUtils.getClassFromWebContainerOrCurrentClassLoader("com.alibaba.druid.stat.DruidDataSourceStatManager");
public Map<String, Object> getDataSourceStatData(Integer id) {
return ctx.getDataSourceStatData(id);
}
druidDataSourceStatManager = (DruidDataSourceStatManager) ReflectionUtils.callStaticMethod(druidDataSourceStatManagerClass,
"getInstance");
datasourceInstances = (Set<DruidDataSource>) ReflectionUtils.callStaticMethod(druidDataSourceStatManagerClass,
"getDruidDataSourceInstances");
public List<Map<String, Object>> getPoolingConnectionInfoByDataSourceId(Integer id) {
return ctx.getPoolingConnectionInfoByDataSourceId(id);
}
Class<?> jdbcStatManagerClass = ReflectionUtils.getClassFromWebContainerOrCurrentClassLoader("com.alibaba.druid.stat.JdbcStatManager");
jdbcStatManager = (JdbcStatManager) ReflectionUtils.callStaticMethod(jdbcStatManagerClass, "getInstance");
}
private Set<DruidDataSource> getDruidDataSourceInstances() {
init();
return datasourceInstances;
}
public void resetDataSourceStat() {
init();
ReflectionUtils.callObjectMethod(druidDataSourceStatManager, "reset");
}
public void resetSqlStat() {
init();
ReflectionUtils.callObjectMethod(jdbcStatManager, "reset");
}
public void resetAll() {
init();
resetSqlStat();
resetDataSourceStat();
}
private JdbcSqlStat getSqlStatById(Integer id) {
for (DruidDataSource ds : getDruidDataSourceInstances()) {
JdbcSqlStat sqlStat = ds.getDataSourceStat().getSqlStat(id);
if (sqlStat != null) return sqlStat;
}
return null;
}
public Map<String, Object> getDataSourceStatData(Integer id) {
init();
if (id == null) {
return null;
}
DruidDataSource datasource = getDruidDataSourceById(id);
return datasource == null ? null : dataSourceToMapData(datasource);
}
private DruidDataSource getDruidDataSourceById(Integer identity) {
if (identity == null) {
return null;
}
for (DruidDataSource datasource : getDruidDataSourceInstances()) {
if (System.identityHashCode(datasource) == identity) {
return datasource;
}
}
return null;
}
public List<Map<String, Object>> getSqlStatDataList() {
init();
List<Map<String, Object>> result = new ArrayList<Map<String, Object>>();
for (DruidDataSource datasource : getDruidDataSourceInstances()) {
for (JdbcSqlStat sqlStat : datasource.getDataSourceStat().getSqlStatMap().values()) {
if (sqlStat.getExecuteCount() == 0 && sqlStat.getRunningCount() == 0) {
continue;
}
result.add(getSqlStatData(sqlStat));
}
}
return result;
}
public Map<String, Object> getSqlStatData(Integer id) {
init();
if (id == null) {
return null;
}
JdbcSqlStat sqlStat = getSqlStatById(id);
return sqlStat == null ? null : getSqlStatData(sqlStat);
}
private Map<String, Object> getSqlStatData(JdbcSqlStat sqlStat) {
try {
return sqlStat.getData();
} catch (JMException e) {
}
return null;
}
public List<Object> getDataSourceStatList() {
init();
List<Object> datasourceList = new ArrayList<Object>();
for (DruidDataSource dataSource : getDruidDataSourceInstances()) {
datasourceList.add(dataSourceToMapData(dataSource));
}
return datasourceList;
}
public Map<String, Object> returnJSONBasicStat() {
init();
Map<String, Object> dataMap = new LinkedHashMap<String, Object>();
dataMap.put("Version", VERSION.getVersionNumber());
dataMap.put("Drivers", getDriversData());
return dataMap;
}
private List<String> getDriversData() {
List<String> drivers = new ArrayList<String>();
for (Enumeration<Driver> e = DriverManager.getDrivers(); e.hasMoreElements();) {
Driver driver = e.nextElement();
drivers.add(driver.getClass().getName());
}
return drivers;
}
public List<Map<String, Object>> getPoolingConnectionInfoByDataSourceId(Integer id) {
init();
DruidDataSource datasource = getDruidDataSourceById(id);
if (datasource == null) return null;
return datasource.getPoolingConnectionInfo();
}
public List<String> getActiveConnectionStackTraceByDataSourceId(Integer id) {
init();
DruidDataSource datasource = getDruidDataSourceById(id);
if (datasource == null || !datasource.isRemoveAbandoned()) return null;
return datasource.getActiveConnectionStackTrace();
}
private Map<String, Object> dataSourceToMapData(DruidDataSource dataSource) {
Map<String, Object> dataMap = new LinkedHashMap<String, Object>();
dataMap.put("Identity", System.identityHashCode(dataSource));
dataMap.put("Name", dataSource.getName());
dataMap.put("DbType", dataSource.getDbType());
dataMap.put("DriverClassName", dataSource.getDriverClassName());
dataMap.put("URL", dataSource.getUrl());
dataMap.put("UserName", dataSource.getUsername());
dataMap.put("FilterClassNames", dataSource.getFilterClassNames());
dataMap.put("WaitThreadCount", dataSource.getWaitThreadCount());
dataMap.put("NotEmptyWaitCount", dataSource.getNotEmptyWaitCount());
dataMap.put("NotEmptyWaitMillis", dataSource.getNotEmptyWaitMillis());
dataMap.put("PoolingCount", dataSource.getPoolingCount());
dataMap.put("PoolingPeak", dataSource.getPoolingPeak());
dataMap.put("PoolingPeakTime",
dataSource.getPoolingPeakTime() == null ? null : dataSource.getPoolingPeakTime().toString());
dataMap.put("ActiveCount", dataSource.getActiveCount());
dataMap.put("ActivePeak", dataSource.getActivePeak());
dataMap.put("ActivePeakTime",
dataSource.getActivePeakTime() == null ? null : dataSource.getActivePeakTime().toString());
dataMap.put("InitialSize", dataSource.getInitialSize());
dataMap.put("MinIdle", dataSource.getMinIdle());
dataMap.put("MaxActive", dataSource.getMaxActive());
dataMap.put("QueryTimeout", dataSource.getQueryTimeout());
dataMap.put("TransactionQueryTimeout", dataSource.getTransactionQueryTimeout());
dataMap.put("LoginTimeout", dataSource.getLoginTimeout());
dataMap.put("ValidConnectionCheckerClassName", dataSource.getValidConnectionCheckerClassName());
dataMap.put("ExceptionSorterClassName", dataSource.getExceptionSorterClassName());
dataMap.put("TestOnBorrow", dataSource.isTestOnBorrow());
dataMap.put("TestOnReturn", dataSource.isTestOnReturn());
dataMap.put("TestWhileIdle", dataSource.isTestWhileIdle());
dataMap.put("DefaultAutoCommit", dataSource.isDefaultAutoCommit());
dataMap.put("DefaultReadOnly", dataSource.isDefaultAutoCommit());
dataMap.put("DefaultTransactionIsolation", dataSource.getDefaultTransactionIsolation());
dataMap.put("LogicConnectCount", dataSource.getConnectCount());
dataMap.put("LogicCloseCount", dataSource.getCloseCount());
dataMap.put("LogicConnectErrorCount", dataSource.getConnectErrorCount());
dataMap.put("PhysicalConnectCount", dataSource.getCreateCount());
dataMap.put("PhysicalCloseCount", dataSource.getDestroyCount());
dataMap.put("PhysicalConnectErrorCount", dataSource.getCreateErrorCount());
dataMap.put("ExecuteCount", dataSource.getExecuteCount());
dataMap.put("ErrorCount", dataSource.getErrorCount());
dataMap.put("CommitCount", dataSource.getCommitCount());
dataMap.put("RollbackCount", dataSource.getRollbackCount());
dataMap.put("PSCacheAccessCount", dataSource.getCachedPreparedStatementAccessCount());
dataMap.put("PSCacheHitCount", dataSource.getCachedPreparedStatementHitCount());
dataMap.put("PSCacheMissCount", dataSource.getCachedPreparedStatementMissCount());
dataMap.put("StartTransactionCount", dataSource.getStartTransactionCount());
dataMap.put("TransactionHistogram", dataSource.getTransactionHistogramValues());
dataMap.put("ConnectionHoldTimeHistogram",
dataSource.getDataSourceStat().getConnectionHoldHistogram().toArray());
dataMap.put("RemoveAbandoned", dataSource.isRemoveAbandoned());
return dataMap;
}
public void resetAll() {
ctx.resetAll();
}
}
src/main/java/com/alibaba/druid/util/ReflectionUtils.java
+52 -15
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@@ -7,49 +7,86 @@ import javax.servlet.http.HttpServletRequest;
/**
* @author sandzhang<sandzhangtoo@gmail.com>
*/
public class ReflectionUtils {
public class ReflectionUtils
{
public static Class<?> getClassFromWebContainerOrCurrentClassLoader(String className) {
public static Class<?> getClassFromWebContainerOrCurrentClassLoader(String className)
{
Class<?> result = null;
try {
try
{
result = HttpServletRequest.class.getClassLoader().loadClass(className);
} catch (ClassNotFoundException e) {
}
if (result == null) {
try {
catch (ClassNotFoundException e)
{
}
if (result == null)
{
try
{
result = Thread.currentThread().getContextClassLoader().loadClass(className);
} catch (ClassNotFoundException e) {
}
catch (ClassNotFoundException e)
{
}
}
return result;
}
public static Object callStaticMethod(Class<?> classObject, String methodName) {
try {
public static Object callStaticMethod(Class<?> classObject, String methodName)
{
try
{
Method m = classObject.getMethod(methodName);
return m.invoke(classObject);
} catch (Exception e) {
}
catch (Exception e)
{
return null;
}
}
public static Object callObjectMethod(Object obj, String methodName) {
try {
public static Object callObjectMethod(Object obj, String methodName)
{
try
{
Method m = obj.getClass().getMethod(methodName);
return m.invoke(obj);
} catch (Exception e) {
}
catch (Exception e)
{
return null;
}
}
public void getTest() {
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 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"));
}
test.html
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