feat:增加统计页面展示废弃连接数

src/main/java/com/alibaba/druid/pool/DruidDataSource.java

@@ -3503,6 +3503,8 @@ public class DruidDataSource extends DruidAbstractDataSource implements DruidDat
         dataMap.put("PhysicalCloseCount", this.getDestroyCount());
         dataMap.put("PhysicalConnectErrorCount", this.getCreateErrorCount());
 
+        dataMap.put("DiscardCount", this.getDiscardCount());
+
         dataMap.put("ExecuteCount", this.getExecuteCount());
         dataMap.put("ExecuteUpdateCount", this.getExecuteUpdateCount());
         dataMap.put("ExecuteQueryCount", this.getExecuteQueryCount());

src/main/resources/support/http/resources/datasource.html

@@ -263,6 +263,11 @@
 								<td>{{=datasourceNow.LogicConnectErrorCount}}</td>
 								<td  class="lang"  langKey="LogicConnectErrorCountDesc">Total connect error times</td>
 							</tr>
+                            <tr>
+                                <td valign="top" class="td_lable" >   <span class="lang"  langKey="DiscardCount">DiscardCount</span></td>
+                                <td>{{=datasourceNow.DiscardCount}}</td>
+                                <td  class="lang"  langKey="DiscardCountDesc">Discard connection count with validate fail </td>
+                            </tr>
 							<tr>
 								<td valign="top" class="td_lable" >   <span class="lang"  langKey="RecycleErrorCount">RecycleErrorCount</span></td>
 								<td>{{=datasourceNow.RecycleErrorCount}}</td>

src/main/resources/support/http/resources/js/lang.js

@@ -63,6 +63,7 @@ druid.lang = function() {
 		'PhysicalConnectCount' : ['PhysicalConnectCount', '物理连接打开次数'],
 		'PhysicalCloseCount' : ['PhysicalCloseCount', '物理关闭数量'],
 		'PhysicalConnectErrorCount' : ['PhysicalConnectErrorCount', '物理连接错误次数'],
+        'DiscardCount' : ['DiscardCount', '校验失败废弃连接数'],
 		'ExecuteCount' : ['ExecuteCount (Total)', '执行数(总共)'],
 		'ErrorCount' : ['ErrorCount', '错误数'],
 		'CommitCount' : ['CommitCount', '提交数'],
@@ -114,6 +115,7 @@ druid.lang = function() {
 		'RecycleErrorCount' : ['Logic Connection Recycle Count', '逻辑连接回收重用次数'],
 		'PhysicalConnectCountDesc' : ['Create physical connnection count', '产生的物理连接建立总数'],
 		'PhysicalCloseCountDesc' : ['Close physical connnection count', '产生的物理关闭总数'],
+        'DiscardCountDesc' : ['Discard connection count with validate fail', '校验连接失败丢弃连接次数'],
 		'PhysicalConnectErrorCountDesc' : ['Total physical connect error times', '产生的物理连接失败总数'],
 		'ExecuteCountDesc' : ['', ''],
 		'ErrorCountDesc' : ['', ''],