通过使用循环java我的循环将在oracle数据库表中插入一些行时，我得到以下错误将近25000次：
java.sql.SQLRecoverableException: Closed Connection; State=08003; ErrorCode=1700
8
at oracle.jdbc.driver.PhysicalConnection.prepareStatement(PhysicalConnec
tion.java:3331)
at com.mchange.v2.c3p0.impl.NewProxyConnection.prepareStatement(NewProxy
Connection.java:275)
at org.compiere.db.PreparedStatementProxy.init(PreparedStatementProxy.ja
va:71)
at org.compiere.db.PreparedStatementProxy.<init>(PreparedStatementProxy.
java:44)
at org.compiere.db.ProxyFactory.newCPreparedStatement(ProxyFactory.java:
54)
at org.compiere.util.DB.executeUpdate(DB.java:1007)
at org.compiere.util.DB.executeUpdate(DB.java:877)
at org.compiere.util.DB.executeUpdate(DB.java:864)
at org.compiere.report.FinReport.insertLineSource(FinReport.java:1033)
at org.compiere.report.FinReport.insertLineDetail(FinReport.java:844)
at org.compiere.report.FinReport.doIt(FinReport.java:306)
at org.compiere.process.SvrProcess.process(SvrProcess.java:147)
at org.compiere.process.SvrProcess.startProcess(SvrProcess.java:105)
以下是我的代码：
private void insertLineSource (int line)
{
log.info("Line=" + line + " - " + m_lines[line]);
// No source lines
if (m_lines[line] == null || m_lines[line].getSources().length == 0)
return;
String variable = m_lines[line].getSourceColumnName();
if (variable == null)
return;
log.fine("Variable=" + variable);
// Insert
StringBuffer insert = new StringBuffer("INSERT INTO T_Report "
+ "(AD_PInstance_ID, PA_ReportLine_ID, Record_ID,Fact_Acct_ID,LevelNo ");
for (int col = 0; col < m_columns.length; col++)
insert.append(",Col_").append(col);
// Select
insert.append(") SELECT ")
.append(getAD_PInstance_ID()).append(",")
.append(m_lines[line].getPA_ReportLine_ID()).append(",")
.append(variable).append(",0,");
if (p_DetailsSourceFirst)
insert.append("-1 ");
else
insert.append("1 ");
// for all columns create select statement
for (int col = 0; col < m_columns.length; col++)
{
insert.append(", ");
// No calculation
if (m_columns[col].isColumnTypeCalculation())
{
insert.append("NULL");
continue;
}
// SELECT SUM()
StringBuffer select = new StringBuffer ("SELECT ");
if (m_lines[line].getPAAmountType() != null) // line amount type overwrites column
select.append (m_lines[line].getSelectClause (true));
else if (m_columns[col].getPAAmountType() != null)
select.append (m_columns[col].getSelectClause (true));
else
{
insert.append("NULL");
continue;
}
if (p_PA_ReportCube_ID > 0) {
select.append(" FROM Fact_Acct_Summary fb WHERE DateAcct ");
} //report cube
else {
// Get Period info
select.append(" FROM Fact_Acct fb WHERE TRUNC(DateAcct, 'DD') ");
}
FinReportPeriod frp = getPeriod (m_columns[col].getRelativePeriod());
if (m_lines[line].getPAPeriodType() != null) // line amount type overwrites column
{
if (m_lines[line].isPeriod())
select.append(frp.getPeriodWhere());
else if (m_lines[line].isYear())
select.append(frp.getYearWhere());
else if (m_lines[line].isNatural())
select.append(frp.getNaturalWhere("fb"));
else
select.append(frp.getTotalWhere());
}
else if (m_columns[col].getPAPeriodType() != null)
{
if (m_columns[col].isPeriod())
select.append(frp.getPeriodWhere());
else if (m_columns[col].isYear())
select.append(frp.getYearWhere());
else if (m_columns[col].isNatural())
select.append(frp.getNaturalWhere("fb"));
else
select.append(frp.getTotalWhere());
}
// Link
select.append(" AND fb.").append(variable).append("=x.").append(variable);
// PostingType
if (!m_lines[line].isPostingType()) // only if not defined on line
{
String PostingType = m_columns[col].getPostingType();
if (PostingType != null && PostingType.length() > 0)
select.append(" AND fb.PostingType='").append(PostingType).append("'");
// globalqss - CarlosRuiz
if (PostingType.equals(MReportColumn.POSTINGTYPE_Budget)) {
if (m_columns[col].getGL_Budget_ID() > 0)
select.append(" AND GL_Budget_ID=" + m_columns[col].getGL_Budget_ID());
}
// end globalqss
}
// Report Where
String s = m_report.getWhereClause();
if (s != null && s.length() > 0)
select.append(" AND ").append(s);
// Limited Segment Values
if (m_columns[col].isColumnTypeSegmentValue())
select.append(m_columns[col].getWhereClause(p_PA_Hierarchy_ID));
// Parameter Where
select.append(m_parameterWhere);
// System.out.println(" c=" + col + ", l=" + line + ": " + select);
//
insert.append("(").append(select).append(")");
}
// WHERE (sources, posting type)
StringBuffer where = new StringBuffer(m_lines[line].getWhereClause(p_PA_Hierarchy_ID));
String s = m_report.getWhereClause();
if (s != null && s.length() > 0)
{
if (where.length() > 0)
where.append(" AND ");
where.append(s);
}
if (where.length() > 0)
where.append(" AND ");
where.append(variable).append(" IS NOT NULL");
if (p_PA_ReportCube_ID > 0)
insert.append(" FROM Fact_Acct_Summary x WHERE ").append(where);
else
// FROM .. WHERE
insert.append(" FROM Fact_Acct x WHERE ").append(where);
//
insert.append(m_parameterWhere)
.append(" GROUP BY ").append(variable);
int no = DB.executeUpdate(insert.toString(), get_TrxName());
if (CLogMgt.isLevelFinest())
log.fine("Source #=" + no + " - " + insert);
if (no == 0)
return;
// Set Name,Description
StringBuffer sql = new StringBuffer ("UPDATE T_Report SET (Name,Description)=(")
.append(m_lines[line].getSourceValueQuery()).append("T_Report.Record_ID) "
//
+ "WHERE Record_ID <> 0 AND AD_PInstance_ID=").append(getAD_PInstance_ID())
.append(" AND PA_ReportLine_ID=").append(m_lines[line].getPA_ReportLine_ID())
.append(" AND Fact_Acct_ID=0");
no = DB.executeUpdate(sql.toString(), get_TrxName());
if (CLogMgt.isLevelFinest())
log.fine("Name #=" + no + " - " + sql.toString());
if (m_report.isListTrx())
insertLineTrx (line, variable);
} // insertLineSource
答案 0 :(得分：1)
应用程序代码不应将缓存的连接句柄从数据访问客户端的一个实例传递到另一个客户端实例。在客户端实例之间传输连接句柄会使用另一个实例引用的连接句柄创建一个实例的有问题的意外事件。 例如，当接收传输句柄的客户端实例的应用程序代码关闭句柄并且保留对句柄的原始引用的客户端实例尝试回收它时，应用程序服务器发出异常。 显示了本案例中预期的一些例外情况 异常描述：检测到清除ManagedConnection以进行销毁操作的异常。请参阅数据库软件报告的错误以帮助确定错误原因。 例外
0000004d WSRdbManagedC W DSRA0180W: Exception detected during
ManagedConnection.destroy(). The exception is:
com.ibm.ws.exception.WsException: DSRA0080E: An exception was received by
the Data Store Adapter Invalid operation: Connection is closed. ERRORCODE=-
4470, SQLSTATE=08003. With SQL State: 08003 SQL Code : -4470
阅读this以获得更多不受欢迎的
答案 1 :(得分：0)
也许代码在打开数据库连接和准备PreparedStatement之间，或者在其他数据库操作和准备下一个PreparedStatement之间花费太多时间做一些事情，以便连接因不活动而关闭
连接可能由Oracle关闭，也可能由C3P0关闭，因此请检查C3P0配置的超时设置。还要考虑稍后在执行中获取连接。
答案 2 :(得分：0)
也许您已经遇到了与Oracle连接相关的C3P0中的错误。
答案 3 :(得分：0)
也许你有一个连接到数据库实例的瞬态网络错误（这假设数据库位于另一台计算机上;如果数据库在同一台计算机上，情况就不是这样了。）
要避免此问题停止执行，您应该捕获此类RecoverableException，从连接池获取新连接，然后重试数据库操作。