Question

java程序有时报死锁的错误，请问是什么原因造成的？

一下是主要报错信息：
java.sql.SQLException: [Microsoft][SQLServer 2000 Driver for JDBC][SQLServer]事务(进程 ID 236)与另一个进程被死锁在 锁 资源上，并且已被选作死锁牺牲品。请重新运行该事务。
at com.microsoft.jdbc.base.BaseExceptions.createException(Unknown Source)
at com.microsoft.jdbc.base.BaseExceptions.getException(Unknown Source)
at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processErrorToken(Unknown Source)
at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processReplyToken(Unknown Source)
at com.microsoft.jdbc.sqlserver.tds.TDSRPCRequest.processReplyToken(Unknown Source)
at com.microsoft.jdbc.sqlserver.tds.TDSRequest.processReply(Unknown Source)
at com.microsoft.jdbc.sqlserver.SQLServerImplStatement.getNextResultType(Unknown Source)
at com.microsoft.jdbc.base.BaseStatement.commonTransitionToState(Unknown Source)
at df_mssql.orderservice.submitOrder(orderservice.java:83)

at df_mssql.submitOrderServlet.doGet(submitOrderServlet.java:34)
at df_mssql.submitOrderServlet.doPost(submitOrderServlet.java:47)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at com.five.filter.EncodingFilter.doFilter(EncodingFilter.java:42)
at com.five.filter.Zh_Filter.doFilter(Zh_Filter.java:31)

at java.lang.Thread.run(Thread.java:722)

Answer 1

双方在执行自己的资源时，又都等待对方释放资源，然后就一直等下去了呗