我正在Tomcat 7环境中使用Java访问Oracle 9数据库。由于多次提交而导致“Stream Closed”错误导致
在的context.xml我
<Resource type="javax.sql.DataSource" auth="Container"
name="jdbc/myDB"
factory="org.apache.tomcat.jdbc.pool.DataSourceFactory"
driverClassName="oracle.jdbc.OracleDriver"
url="jdbc:oracle:thin:@localhost:1521:db" maxwait="10000"
username="temp" password="temp" maxActive="20" maxIdle="10"/>
我的Java代码工作的大部分时间,但有时随机我得到流封闭例外。我怀疑这可能是因为用户太快地按下应用程序中的按钮,因此在完成另一个查询之前启动一个查询。
此异常是由以下代码中的doEndTag函数引起的。
public class SQLIteratorTag extends BodyTagSupport
{
public SQLIteratorTag()
{
query = "";
rs = null;
stmt = null;
rsmd = null;
dbConn = null;
con = null;
}
public int doStartTag()
throws JspTagException
{
String fieldName = "";
try
{
DBConnection d=DBConnection.getInstance();
con = d.getConnection();
...
public int doAfterBody()
throws JspException
{
try
{
....
public int doEndTag()
throws JspException
{
try
{
if(bodyContent != null)
{
bodyContent.writeOut(bodyContent.getEnclosingWriter());
}
}
catch(IOException ex)
{
Log.getIns
我不想发布太多的代码,但我可能发布的太少。我不知道问题出在哪里,但如有必要,我会更新问题。
例外本身是:
SEVERE: Servlet.service() for servlet [jsp] in context with path [/charm] threw exception [javax.servlet.ServletException: javax.servlet.jsp.JspTagException: Stream closed] with root cause
javax.servlet.jsp.JspTagException: Stream closed
at c.tags.sql.SQLIteratorTag.doEndTag(SQLIteratorTag.java:218)
at org.apache.jsp.comp_005fpara_jsp._jspService(comp_005fpara_jsp.java:708)
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 com.jspbook.GZIPFilter.doFilter(Unknown Source)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:224)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:169)
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:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:927)
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:987)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:579)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:309)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
at java.lang.Thread.run(Thread.java:722)
什么是实际的异常 - 你可以发布堆栈跟踪?你确定它来自数据库方面,而不是服务器和浏览器之间的中断连接 - 这可能与点击两次方案相匹配? – 2012-02-29 15:08:56
嗨,亚历克斯。我按要求添加了堆栈跟踪。我不确定错误来自哪里! – gordon613 2012-02-29 15:50:20