分页点击下一页是报错

[qq_16609613]

java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at dispatcher.SimpleDispatcherServlet.doGet(SimpleDispatcherServlet.java:40)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
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 dispatcher.Encoding.doFilter(Encoding.java:22)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:859)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.lang.NumberFormatException: For input string: ""
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:468)
at java.lang.Integer.parseInt(Integer.java:497)
at servlet.web.GotoArticleListServlet.doGet(GotoArticleListServlet.java:32)
... 22 more

[super_Leon]

你分页传递的参数是在input标签中获取的吧。。你判定下你要传递的参数 如果为"" 就传1 获取其他值 空字符是没法转number的

[SexyCode]

Caused by: java.lang.NumberFormatException: For input string: "" 你传了个空字符串过去，然后想把他转成数字格式，所以报错了。

[姜小白-]

Caused by: java.lang.NumberFormatException: For input string: ""
检查一下代码，应该是分页的页码数字没有带到后台，导致转换出错了
GotoArticleListServlet.java:32 检查一下 32行

[microhex]

Caused by: java.lang.NumberFormatException: For input string: "" at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) at java.lang.Integer.parseInt(Integer.java:468) at java.lang.Integer.parseInt(Integer.java:497) /******************************************************************************* at servlet.web.GotoArticleListServlet.doGet(GotoArticleListServlet.java:32) *******************************************************************************/

[志鸿思荣]

你在做下一页时，在页面上没有判断