增加了jconsole监控界面

src/main/java/com/alibaba/druid/support/jconsole/DruidDataSourcePanel.java

@@ -1,22 +1,71 @@
-/*
- * Copyright 1999-2011 Alibaba Group Holding Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.alibaba.druid.support.jconsole;
-
-public class DruidDataSourcePanel extends DruidPanel {
-
-    private static final long serialVersionUID = 1L;
-
-}
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.support.jconsole;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+
+import com.alibaba.druid.support.jconsole.model.DruidTableModel;
+import com.alibaba.druid.support.jconsole.model.RowHeaderTable;
+import com.alibaba.druid.support.jconsole.util.TableDataProcessor;
+import com.alibaba.druid.support.jconsole.util.TableDataProcessor.ColumnData;
+
+/**
+ * 请求地址：/datasource.json
+ * 
+ * 请求返回的json格式：
+ * {"ResultCode":1,
+ * 		"Content":
+ * 			[{"Identity":31375837,"Name":"DataSource-31375837","DbType":"mysql",
+ * 			"DriverClassName":"com.mysql.jdbc.Driver",
+ * 			"URL":"jdbc:mysql://localhost:3306/dragoon_v25_masterdb","UserName":"root",
+ * 			"FilterClassNames":["com.alibaba.druid.filter.stat.StatFilter"],
+ * 			"WaitThreadCount":0,"NotEmptyWaitCount":0,"NotEmptyWaitMillis":0,"PoolingCount":1,
+ * 			"PoolingPeak":0,"ActiveCount":0,"ActivePeak":1,"ActivePeakTime":"Tue Aug 21 21:22:33 CST 2012",
+ * 			"InitialSize":1,"MinIdle":1,"MaxActive":20,"QueryTimeout":0,"TransactionQueryTimeout":0,
+ * 			"LoginTimeout":0,"ValidConnectionCheckerClassName":"com.alibaba.druid.pool.vendor.MySqlValidConnectionChecker",
+ * 			"ExceptionSorterClassName":"com.alibaba.druid.pool.vendor.MySqlExceptionSorter",
+ * 			"TestOnBorrow":false,"TestOnReturn":false,"TestWhileIdle":true,"DefaultAutoCommit":true,
+ * 			"DefaultReadOnly":true,"LogicConnectCount":93,"LogicCloseCount":93,"LogicConnectErrorCount":0,
+ * 			"PhysicalConnectCount":1,"PhysicalCloseCount":0,"PhysicalConnectErrorCount":0,
+ * 			"ExecuteCount":93,"ErrorCount":0,"CommitCount":0,"RollbackCount":0,"PSCacheAccessCount":31,
+ * 			"PSCacheHitCount":30,"PSCacheMissCount":1,"StartTransactionCount":0,
+ * 			"TransactionHistogram":[0,0,0,0,0,0],"ConnectionHoldTimeHistogram":[0,0,48,45,0,0,0,0],
+ * 			"RemoveAbandoned":false
+ * 			}]
+ * }
+ * */
+public class DruidDataSourcePanel extends DruidPanel {
+
+    private static final long serialVersionUID = 1L;
+    private static final String REQUEST_URL = "/datasource.json";
+    private static final String KEY_WORD_IDENTITY = "Identity";
+    
+    public DruidDataSourcePanel() {
+    	super();
+    	this.url = REQUEST_URL;
+    }
+	@Override
+	protected void tableDataProcess(
+			ArrayList<LinkedHashMap<String, Object>> data) {
+		ColumnData columnData = TableDataProcessor.row2col(data, KEY_WORD_IDENTITY);
+		tableModel = new DruidTableModel(columnData.getDatas());
+		table.setModel(tableModel);
+		RowHeaderTable header = new RowHeaderTable(
+				columnData.getNames(),table,50,columnData.getCount());
+		scrollPane.setRowHeaderView(header);
+	}
+}

src/main/java/com/alibaba/druid/support/jconsole/DruidDriverPanel.java

@@ -1,22 +1,51 @@
-/*
- * Copyright 1999-2011 Alibaba Group Holding Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.alibaba.druid.support.jconsole;
-
-public class DruidDriverPanel extends DruidPanel {
-
-    private static final long serialVersionUID = 1L;
-
-}
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.support.jconsole;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+
+import com.alibaba.druid.support.jconsole.model.DruidTableModel;
+
+/**
+ * 请求地址：/basic.json
+ * 
+ * 请求返回的json格式：
+ * {"ResultCode":1,"Content":
+ * 			{"Version":"0.2.6","Drivers":
+ * 					["sun.jdbc.odbc.JdbcOdbcDriver","com.alibaba.druid.mock.MockDriver",
+ * 					"com.mysql.jdbc.Driver","com.alibaba.druid.proxy.DruidDriver"]
+ * 			}
+ * }
+ * */
+public class DruidDriverPanel extends DruidPanel {
+
+    private static final long serialVersionUID = 1L;
+    private static final String REQUEST_URL = "/basic.json";
+    
+    public DruidDriverPanel() {
+    	super();
+    	url = REQUEST_URL;
+    }
+
+	@Override
+	protected void tableDataProcess(
+			ArrayList<LinkedHashMap<String, Object>> data) {
+		tableModel = new DruidTableModel(data);
+		table.setModel(tableModel);
+	}    
+}
+

src/main/java/com/alibaba/druid/support/jconsole/DruidPanel.java

@@ -1,36 +1,164 @@
-/*
- * Copyright 1999-2011 Alibaba Group Holding Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.alibaba.druid.support.jconsole;
-
-import javax.management.MBeanServerConnection;
-import javax.swing.JPanel;
-
-import com.sun.tools.jconsole.JConsoleContext;
-
-public class DruidPanel extends JPanel {
-
-    private static final long serialVersionUID = 1L;
-
-    protected Object doInBackground(JConsoleContext context) throws Exception {
-        doInBackground(context.getMBeanServerConnection());
-
-        return null;
-    }
-    
-    protected void doInBackground(MBeanServerConnection conn) throws Exception {
-        System.out.println("doInBackground");
-    }
-}
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.support.jconsole;
+
+import java.awt.GridBagConstraints;
+import java.awt.GridBagLayout;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
+
+import javax.management.MBeanServerConnection;
+import javax.management.ObjectName;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTable;
+
+import com.alibaba.druid.stat.DruidStatService;
+import com.alibaba.druid.support.jconsole.model.DruidTableModel;
+import com.alibaba.druid.support.json.JSONUtils;
+import com.alibaba.druid.support.logging.Log;
+import com.alibaba.druid.support.logging.LogFactory;
+import com.sun.tools.jconsole.JConsoleContext;
+
+public abstract class DruidPanel extends JPanel {
+
+    private static final long serialVersionUID = 1L;
+    protected static final int RESP_SUCCESS_RESULT = 1;
+    protected static final String RESP_JSON_RESULT_KEY = "ResultCode";
+    protected static final String RESP_JSON_CONTENT_KEY = "Content";
+    protected static final long DEFAULT_ACTIVE_TIME = 5*60*1000;
+    
+    protected static final int DRUID_TABLE_WIDTH = 600;
+    protected static final int DRUID_TABLE_HEIGHT = 500;
+    
+    protected JScrollPane scrollPane;
+    protected DruidTableModel tableModel;
+    protected JTable table;
+    protected String url;
+    
+    /** 界面刷新的间隔时间，单位为毫秒. */
+    protected long activeTime;
+    protected long lastRefreshTime;
+    private final static Log LOG = LogFactory.getLog(DruidPanel.class);
+    
+    protected DruidPanel(long  activeTime) {
+    	this.activeTime = activeTime;
+    }
+    
+    protected DruidPanel() {
+    	activeTime = DEFAULT_ACTIVE_TIME;
+    }
+    
+    @SuppressWarnings("unchecked")
+    protected ArrayList<LinkedHashMap<String,Object>> parseData(Object respData) {
+    	ArrayList<LinkedHashMap<String,Object>> data = null;
+		if (respData instanceof Map) {
+			LinkedHashMap<String,Object> map = (LinkedHashMap<String, Object>)respData;
+			int rv = (Integer)map.get(RESP_JSON_RESULT_KEY);
+
+			if (rv == RESP_SUCCESS_RESULT) {
+				Object content = map.get(RESP_JSON_CONTENT_KEY);
+				if (content instanceof List) {
+					data = (ArrayList<LinkedHashMap<String, Object>>)content;
+				} else if (content instanceof Map) {
+					LinkedHashMap<String, Object> contentEle
+						= (LinkedHashMap<String, Object>)content;
+					data = new ArrayList<LinkedHashMap<String,Object>>();
+					data.add(contentEle);
+				}
+			}
+		}
+    	return data;
+    }
+    
+    protected Object getData(String url,MBeanServerConnection conn) throws Exception {
+    	Object o = null;
+    	ObjectName name = new ObjectName(DruidStatService.MBEAN_NAME);
+        
+        String result = (String) conn.invoke(name, "service",
+         		new String[] { url }, new String[] { String.class.getName() });
+        o = JSONUtils.parse(result);
+        if (LOG.isDebugEnabled()) {
+        	LOG.debug(o.toString());
+        }
+        return o;
+    }
+    
+    protected abstract void tableDataProcess(ArrayList<LinkedHashMap<String,Object>> data);
+    
+    protected void addOrRefreshTable(String url,MBeanServerConnection conn) throws Exception {
+		if (url != null) {
+			boolean needRefresh = false;
+			long timeNow = new Date().getTime();
+			if (scrollPane == null) {
+				table = new JTable();
+
+				scrollPane = new JScrollPane(table);
+				scrollPane.setAutoscrolls(true);
+				GridBagLayout gridbag = new GridBagLayout();
+				GridBagConstraints c = new GridBagConstraints();
+				setLayout(gridbag);
+
+				c.fill = GridBagConstraints.BOTH;
+				c.gridx = 0;
+				c.gridy = 0;
+				c.weightx = 9;
+				c.weighty = 9;
+
+				gridbag.setConstraints(scrollPane, c);
+
+				this.add(scrollPane);
+				needRefresh = true;
+				lastRefreshTime = timeNow;
+			} else {
+				if (lastRefreshTime + activeTime < timeNow) {
+					needRefresh = true;
+					lastRefreshTime = timeNow;
+				}
+			}
+			if (needRefresh) {
+				LOG.debug("refresh" + timeNow);
+				ArrayList<LinkedHashMap<String, Object>> data = parseData(getData(
+						url, conn));
+				if (data != null) {
+					tableDataProcess(data);
+				}
+			}
+
+		} else {
+			// url不存在
+			LOG.warn("url不存在");
+		}
+    }
+
+    protected Object doInBackground(JConsoleContext context) throws Exception {
+        doInBackground(context.getMBeanServerConnection());
+
+        return null;
+    }
+    
+    protected void doInBackground(MBeanServerConnection conn) {
+    	
+        try {
+			addOrRefreshTable(url,conn);
+		} catch (Exception e) {
+			LOG.warn("", e);
+		}
+    }
+}

src/main/java/com/alibaba/druid/support/jconsole/DruidSQLPanel.java

@@ -1,36 +1,109 @@
-/*
- * Copyright 1999-2011 Alibaba Group Holding Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.alibaba.druid.support.jconsole;
-
-import javax.management.MBeanServerConnection;
-import javax.management.ObjectName;
-
-import com.alibaba.druid.stat.DruidStatService;
-import com.alibaba.druid.support.json.JSONUtils;
-
-public class DruidSQLPanel extends DruidPanel {
-
-    private static final long serialVersionUID = 1L;
-
-    protected void doInBackground(MBeanServerConnection conn) throws Exception {
-        ObjectName name = new ObjectName(DruidStatService.MBEAN_NAME);
-        String url = "/sql.json";
-        String result = (String) conn.invoke(name, "service", new String[] { url }, new String[] { String.class.getName() });
-        Object o = JSONUtils.parse(result);
-
-        System.out.println(o);
-    }
-}
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.support.jconsole;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+
+import com.alibaba.druid.support.jconsole.model.DruidTableModel;
+import com.alibaba.druid.support.jconsole.model.RowHeaderTable;
+/**
+ * 请求地址 /sql.json
+ * 
+ * 返回数据格式：
+ * <pre>
+ * {
+    "ResultCode": 1,
+    "Content": [
+        {
+            "BatchSizeMax": 0,
+            "BatchSizeTotal": 0,
+            "ConcurrentMax": 1,
+            "DbType": "h2",
+            "EffectedRowCount": 18,
+            "EffectedRowCountHistogram": [
+                0,6,0,0,0,0
+            ],
+            "EffectedRowCountMax": 4,
+            "ErrorCount": 0,
+            "ExecuteAndResultHoldTimeHistogram": [
+                5,0,1,0,0,0,0,0
+            ],
+            "ExecuteAndResultSetHoldTime": 0,
+            "ExecuteCount": 6,
+            "FetchRowCount": 0,
+            "FetchRowCountHistogram": [
+                6,0,0,0,0,0
+            ],
+            "FetchRowCountMax": 0,
+            "Histogram": [
+                5,0,1,0,0,0,0,0
+            ],
+            "ID": 9,
+            "InTransactionCount": 6,
+            "LastSlowParameters": "[4]",
+            "LastTime": "2012-08-22 02:57:56",
+            "MaxTimespan": 18,
+            "MaxTimespanOccurTime": "2012-08-22 12:38:56",
+            "ResultSetHoldTime": 0,
+            "RunningCount": 0,
+            "SQL": "delete from acct_group_permission where group_id=?",
+            "TotalTime": 21
+        },
+     ]
+  }
+  </pre>
+ * */
+public class DruidSQLPanel extends DruidPanel {
+
+    private static final long serialVersionUID = 1L;
+    private static final String REQUEST_URL = "/sql.json";
+    private static final ArrayList<String> SHOW_LIST = new ArrayList<String>() {
+
+		private static final long serialVersionUID = 1L;
+
+		{
+    		add("SQL");
+    		add("ExecuteCount");
+    		add("MaxTimespan");
+    		add("InTransactionCount");
+    		add("ErrorCount");
+    		add("EffectedRowCount"); 
+    		add("FetchRowCount");
+    		add("RunningCount");
+    		add("ConcurrentMax");
+    		add("EffectedRowCountHistogram");
+    		add("ExecuteAndResultHoldTimeHistogram");
+    		add("FetchRowCountHistogram");
+    	}
+    };  
+    private RowHeaderTable header;
+
+	public DruidSQLPanel() {
+		super();
+		this.url = REQUEST_URL;
+	}
+
+	@Override
+	protected void tableDataProcess(
+			ArrayList<LinkedHashMap<String, Object>> data) {
+		tableModel = new DruidTableModel(data,SHOW_LIST);
+		table.setModel(tableModel);
+		
+		header = new RowHeaderTable(table,20);
+		scrollPane.setRowHeaderView(header);
+	}   
+}

src/main/java/com/alibaba/druid/support/jconsole/model/DruidTableModel.java

@@ -0,0 +1,101 @@
+package com.alibaba.druid.support.jconsole.model;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+
+import javax.swing.event.TableModelListener;
+import javax.swing.table.TableModel;
+
+public class DruidTableModel implements TableModel {
+	private ArrayList<LinkedHashMap<String,Object>> list;	
+	private ArrayList<String> showKeys;
+
+	public DruidTableModel(ArrayList<LinkedHashMap<String, Object>> list) {
+		super();
+		this.list = list;
+		showKeys = null;
+	}	
+
+	public DruidTableModel(ArrayList<LinkedHashMap<String, Object>> list,
+			ArrayList<String> showKeys) {
+		super();
+		this.list = list;
+		this.showKeys = showKeys;
+	}
+
+
+	@Override
+	public Class<?> getColumnClass(int columnIndex) {
+		return String.class;
+	}
+
+	@Override
+	public int getColumnCount() {
+		int colCount = 0;
+		if (showKeys != null) {
+			colCount = showKeys.size();
+		} else if (list != null) {
+			int listLen = list.size();
+			if (listLen > 0) {
+				colCount = list.get(0).size();
+			}
+		}
+		return colCount;
+	}
+	
+	@Override
+	public String getColumnName(int columnIndex) {
+		if (showKeys != null && showKeys.size() > 0) {
+			return showKeys.get(columnIndex);
+		}
+		if (list != null && list.size() > 0) {
+			LinkedHashMap<String,Object> firstElement = list.get(0);
+			Object[] keys = firstElement.keySet().toArray();
+			return keys[columnIndex].toString();
+		}
+		return null;
+	}
+
+	@Override
+	public int getRowCount() {
+		return list.size();
+	}
+
+	@Override
+	public Object getValueAt(int rowIndex, int columnIndex) {
+		if (list != null && rowIndex < list.size()) {
+			LinkedHashMap<String,Object> dataNow = list.get(rowIndex);
+			if (showKeys != null) {
+				int titleLen = showKeys.size();
+				if (titleLen > 0 && columnIndex < titleLen) {
+					return dataNow.get(showKeys.get(columnIndex));
+				}
+			} else {
+				Object[] values = dataNow.values().toArray();
+				return values[columnIndex];
+			}
+		}
+		return null;
+	}
+
+	@Override
+	public boolean isCellEditable(int rowIndex, int columnIndex) {
+		return false;
+	}
+
+	@Override
+	public void addTableModelListener(TableModelListener l) {
+		
+	}
+
+	@Override
+	public void removeTableModelListener(TableModelListener l) {
+		
+	}
+
+	@Override
+	public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
+		
+	}
+
+}

src/main/java/com/alibaba/druid/support/jconsole/model/RowHeaderTable.java

@@ -0,0 +1,142 @@
+package com.alibaba.druid.support.jconsole.model;
+
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Dimension;
+import java.util.ArrayList;
+
+import javax.swing.JLabel;
+import javax.swing.JTable;
+import javax.swing.ListSelectionModel;
+import javax.swing.UIManager;
+import javax.swing.event.ListSelectionEvent;
+import javax.swing.event.ListSelectionListener;
+import javax.swing.table.DefaultTableModel;
+import javax.swing.table.JTableHeader;
+import javax.swing.table.TableCellRenderer;
+
+/**
+ * 用于显示RowHeader的JTable，只需要将其加入JScrollPane的RowHeaderView即可为JTable生成行标题
+ */
+public class RowHeaderTable extends JTable
+{
+	private static final long serialVersionUID = 1L;
+
+	/**
+	 * 为JTable添加RowHeader，
+	 * @param refTable 需要添加rowHeader的JTable  
+	 * @param columnWideth rowHeader的宽度
+	 */
+	public RowHeaderTable(JTable refTable,int columnWidth){
+		this(null,refTable,columnWidth,1);
+	}
+	
+	public RowHeaderTable(ArrayList<String> title,JTable refTable,int columnWidth) {
+		this(title,refTable,columnWidth,1);
+	}
+	
+	public RowHeaderTable(ArrayList<String> title,JTable refTable,int columnWidth,int rowSpan) {
+		super(new DefaultTableModel(refTable.getRowCount()/rowSpan,1));
+		this.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);//不可以调整列宽
+		this.getColumnModel().getColumn(0).setPreferredWidth(columnWidth);
+		this.setDefaultRenderer(Object.class,new RowHeaderRenderer(title,refTable,this,rowSpan));//设置渲染器
+		this.setPreferredScrollableViewportSize (new Dimension(columnWidth,0));
+	}
+}
+/**
+ * 用于显示RowHeader的JTable的渲染器，当选择某行时，该行颜色会发生变化
+ */
+final class RowHeaderRenderer extends JLabel implements TableCellRenderer,ListSelectionListener
+{
+	private static final long serialVersionUID = 1L;
+	private JTable reftable;//需要添加rowHeader的JTable
+	private JTable tableShow;//用于显示rowHeader的JTable
+	private ArrayList<String> headerList;
+	private int rowHeightNow;
+	private int rowSpan;
+	
+	public RowHeaderRenderer(JTable reftable,JTable tableShow) {
+		this(null,reftable,tableShow,0);
+	}
+	
+    public RowHeaderRenderer(ArrayList<String> headerList,
+    		JTable reftable,JTable tableShow,int rowSpan)
+    {
+    	this.headerList = headerList;
+        this.reftable = reftable;
+		this.tableShow=tableShow;
+		//增加监听器，实现当在reftable中选择行时，RowHeader会发生颜色变化
+		ListSelectionModel listModel=reftable.getSelectionModel();
+		listModel.addListSelectionListener(this); 
+		rowHeightNow = reftable.getRowCount()*reftable.getRowHeight();
+		this.rowSpan = rowSpan;
+		if (rowSpan > 1) {
+			rowHeightNow = rowSpan*reftable.getRowHeight();
+		}
+    }
+    public Component getTableCellRendererComponent(JTable table,Object obj,
+		boolean isSelected,boolean hasFocus,int row, int col)
+    {
+    	int rowCountNow = reftable.getRowCount()/rowSpan;
+		((DefaultTableModel)table.getModel()).setRowCount(rowCountNow);
+        JTableHeader header = reftable.getTableHeader();
+        this.setOpaque(true);
+        setBorder(UIManager.getBorder("TableHeader.cellBorder"));//设置为TableHeader的边框类型
+        setHorizontalAlignment(CENTER);//让text居中显示
+        setBackground(header.getBackground());//设置背景色为TableHeader的背景色  
+        if ( isSelect(row) )    //当选取单元格时,在row header上设置成选取颜色 
+        {
+            setForeground(Color.white);
+            setBackground(Color.lightGray);
+        }
+        else
+        {
+            setForeground(header.getForeground());   
+        }
+		setFont(header.getFont());
+		if (row <= rowCountNow){
+			showCol(row);
+		}
+        return this;
+    }
+    
+    private void showCol(int row) {
+    	
+    	String text = null;
+    	if (headerList != null && row < headerList.size()) {
+    		text = headerList.get(row);
+		} else {
+			text = String.valueOf(row+1);
+		}  
+    	if (rowSpan > 1) {
+    		setText(text);        		
+    		this.tableShow.setRowHeight(row, rowHeightNow);
+    	} else {
+    		setText(text);
+    	}
+    	
+    }
+    
+	public void valueChanged(ListSelectionEvent e){
+		this.tableShow.repaint();
+	}
+    private boolean isSelect(int row)
+    {
+        int[] sel = reftable.getSelectedRows();
+        if (rowSpan <= 1) {
+        	for ( int i=0,len = sel.length; i<len; i++ ) {
+                if (sel[i] == row ) {
+    				return true;
+                }
+        	}
+        } else {        	
+        	for ( int i=0,len = sel.length; i<len; i++ ) {
+        		if (sel[i] / rowSpan == row) {
+        			return true;
+        		}
+        	}
+        }
+        
+        return false;
+    }
+}

src/main/java/com/alibaba/druid/support/jconsole/util/TableDataProcessor.java

@@ -0,0 +1,72 @@
+package com.alibaba.druid.support.jconsole.util;
+
+import java.util.ArrayList;
+import java.util.LinkedHashMap;
+import java.util.Map;
+
+public final class TableDataProcessor {
+	private static final String COLUMN_KEY_NAME = "key";
+	private static final String COLUMN_VALUE_NAME = "value";
+	private TableDataProcessor() {
+		
+	}
+	
+	public static ColumnData row2col(
+			ArrayList<LinkedHashMap<String, Object>> rowDatas, String keyword) {
+		ColumnData datas = new ColumnData();
+		ArrayList<LinkedHashMap<String, Object>> coldatas
+			= new ArrayList<LinkedHashMap<String, Object>>();
+		ArrayList<String> colNames = new ArrayList<String>();
+		int rowCount = 0;
+		int colCount = 0;
+		for(LinkedHashMap<String, Object> row: rowDatas) {
+			String keyNow = row.remove(keyword).toString();
+			colNames.add(keyNow);
+			rowCount ++;
+			
+			for(Map.Entry <String,   Object>  element   :   row.entrySet()) {
+				LinkedHashMap<String, Object> colData
+				= new LinkedHashMap<String, Object>();
+				colData.put(COLUMN_KEY_NAME, element.getKey());
+				colData.put(COLUMN_VALUE_NAME, element.getValue());
+				coldatas.add(colData);
+				if (rowCount == 1) {
+					colCount++;
+				}
+			}			
+		}
+		datas.setCount(colCount);
+		datas.setDatas(coldatas);
+		datas.setNames(colNames);
+		return datas;
+	}
+	
+	public static class ColumnData {
+		private ArrayList<String> names;
+		private ArrayList<LinkedHashMap<String, Object>> datas;
+		private int count;
+		
+		public ColumnData() {
+			super();
+		}
+		
+		public ArrayList<String> getNames() {
+			return names;
+		}
+		public void setNames(ArrayList<String> names) {
+			this.names = names;
+		}
+		public ArrayList<LinkedHashMap<String, Object>> getDatas() {
+			return datas;
+		}
+		public void setDatas(ArrayList<LinkedHashMap<String, Object>> datas) {
+			this.datas = datas;
+		}
+		public int getCount() {
+			return count;
+		}
+		public void setCount(int count) {
+			this.count = count;
+		}		
+	}
+}