Question

严重: Servlet.service() for servlet jsp threw exception 求问怎么

com.microsoft.sqlserver.jdbc.SQLServerException: 列名 Book_Img_Url 无效。
at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerResultSet.findColumn(Unknown Source)
at com.microsoft.sqlserver.jdbc.SQLServerResultSet.getString(Unknown Source)
at org.apache.jsp.index_jsp._jspService(index_jsp.java:157)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:393)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:320)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:266)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:261)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:581)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)

Answer 1

首先检查你写的sql语句，sql语句中没有列名Book_Img_Url。修改后看看是否还有错误!希望对你有帮助

追问

Book_Img_Url
我们数据库里面都没有这个列

追答

对啊 既然没有这个列 肯定无效啊

Answer 2

你的sql写错了 ，
Book_Img_Url 就是这个字段写错了

Answer 3

这不是写得清清楚楚列名无效吗？程序中的列名与数据库中的列名不一致。

Answer 4

你的列名和你的sql语句，没有一一对应好。

Answer 5

需要配置连接sqlserver数据库