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分享DBCP object created 2013-04-28 00:03:53 by the following code was never closed
部署在tomcat下的一个工程，工程里面的default.js调用了一个sc.jsp，后台日志时不时的就会报错，有哪位大神能不能帮偶看看问题出在哪哇
org.apache.tomcat.dbcp.dbcp.AbandonedTrace$AbandonedObjectException: DBCP object created 2013-04-28 00:03:53 by the following code was never closed: 详细的报错代码如下：
org.apache.tomcat.dbcp.dbcp.AbandonedTrace$AbandonedObjectException: DBCP object created 2013-04-28 00:03:53 by the following code was never closed:
at org.apache.tomcat.dbcp.dbcp.AbandonedTrace.setStackTrace(AbandonedTrace.java:139)
at org.apache.tomcat.dbcp.dbcp.AbandonedObjectPool.borrowObject(AbandonedObjectPool.java:81)
at org.apache.tomcat.dbcp.dbcp.PoolingDataSource.getConnection(PoolingDataSource.java:106)
at org.apache.tomcat.dbcp.dbcp.BasicDataSource.getConnection(BasicDataSource.java:1044)
at org.apache.jsp.sc_jsp.getConnection(sc_jsp.java:35)
at org.apache.jsp.sc_jsp.countbytitle(sc_jsp.java:45)
at org.apache.jsp.sc_jsp._jspService(sc_jsp.java:173)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.AprEndpoint$SocketWithOptionsProcessor.run(AprEndpoint.java:1771)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
function countbytitle(titleurl){
var url = "http://localhost:8080/helpsearch/sc.jsp?q=" + cjkEncode(titleurl);
var js_obj = document.createElement("script");
js_obj.type = "text/javascript";
js_obj.setAttribute("src",url);
document.body.appendChild(js_obj);
};
sc.jsp代码如下：
<%@ page language="java" contentType="application/x-javascript; charset=utf-8"%>
<%@ page import="java.io.File" %>
<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.DriverManager" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.sql.Statement" %>
<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.sql.Statement" %>
<%@ page import="javax.naming.Context" %>
<%@ page import="javax.naming.InitialContext" %>
<%@ page import="javax.sql.DataSource" %>
<%!
public static Connection getConnection() {
Connection conn = null;
try {
Context context = new InitialContext();
DataSource datasource = (DataSource) context.lookup("java:comp/env/jdbc/mysql");
conn = datasource.getConnection();
} catch (Exception e) {
e.printStackTrace();
}
return conn;
}
private static String countbytitle(String titleurl) throws Exception{
StringBuffer data = new StringBuffer("[");
//int yesnum = 25;
//int nonum = 30;
Connection conn = getConnection();
Statement st = conn.createStatement();
ResultSet rs = null;
String sqlyes = "";
String sqlno = "";
int yesnum = 0;
int nonum = 0;
sqlyes = "SELECT count(*) FROM doc_solveproblem WHERE doctitle = '"+titleurl+"' AND 703solveproblem = 'yes'";
rs = st.executeQuery(sqlyes);
if (rs.next()) {
yesnum = rs.getInt(1);
}
sqlno = "SELECT count(*) FROM doc_solveproblem WHERE doctitle = '"+titleurl+"' AND 703solveproblem = 'no'";
rs = st.executeQuery(sqlno);
if (rs.next()) {
nonum = rs.getInt(1);
}
data.append("\"");
data.append(yesnum + "\",");
data.append("\"");
data.append(nonum + "\"");
st.close();
conn.close();
data.append("]");
System.out.println(yesnum);
System.out.println(nonum);
return data.toString();
}
private static String cjkDecode(String text) throws Exception {
if (text == null) {
return "";
}
//查找没有 "[", 直接返回.
if (text.indexOf('[') == -1) {
return text;
}
StringBuffer newTextBuf = new StringBuffer();
for (int i = 0; i < text.length(); i++) {
char ch = text.charAt(i);
if (ch == '[') {
int rightIdx = text.indexOf(']', i + 1);
if (rightIdx > i + 1) {
String subText = text.substring(i + 1, rightIdx);
//james：主要是考虑[CDATA[]]这样的值的出现
if (subText.length() > 0) {
ch = (char) Integer.parseInt(subText, 16);
}
i = rightIdx;
}
}
newTextBuf.append(ch);
}
return newTextBuf.toString();
}
%>
<%
String titleurl = cjkDecode(request.getParameter("q"));
String data = "[]";
try {
data = countbytitle(titleurl);
} catch (Exception e) {
e.printStackTrace();
}
response.getWriter().print("var data = " + data + ";");
response.getWriter().print("var titleurl = '" + titleurl + "';");
response.getWriter().print("test(titleurl, data);");
%>
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