帮忙解释下这是什么 异常

Question

2009-2-21 11:29:58 org.apache.catalina.core.StandardWrapperValve invoke
严重: Servlet.service() for servlet action threw exception
java.lang.NumberFormatException: For input string: "/i"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:447)
at cn.kookypanda.tool.DESPlus.hexStr2ByteArr(DESPlus.java:67)
at cn.kookypanda.tool.DESPlus.decrypt(DESPlus.java:144)
at cn.kookypanda.tool.URLEncoder.uncode(URLEncoder.java:37)
at cn.kookypanda.tool.URLEncoder.uncode(URLEncoder.java:48)
at cn.kookypanda.struts.LanguageAction.execute(LanguageAction.java:88)
at org.springframework.web.struts.DelegatingActionProxy.execute(DelegatingActionProxy.java:106)
at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:419)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:224)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1194)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
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 org.ajaxanywhere.AAFilter.doFilter(AAFilter.java:46)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at cn.kookypanda.tool.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:39)
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:128)
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:286)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
at java.lang.Thread.run(Thread.java:619)

Answer 1

java.lang.NumberFormatException: For input string: "/i" 
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) 
at java.lang.Integer.parseInt(Integer.java:447) 你去48行和447行看看吧，要么帖程序

Answer 2

NumberFormat.format(str);
中的str包含"/i"字符没有办法格式化 抛出异常

Answer 3

注意这几行
at cn.kookypanda.tool.DESPlus.hexStr2ByteArr(DESPlus.java:67)
at cn.kookypanda.tool.DESPlus.decrypt(DESPlus.java:144)
at cn.kookypanda.tool.URLEncoder.uncode(URLEncoder.java:37)
at cn.kookypanda.tool.URLEncoder.uncode(URLEncoder.java:48) 

Answer 4

java.lang.NumberFormatException: For input string: "/i" 
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) 
将非数字的字符串转化为数字。
最好把代码贴上来看看

Answer 5

字符不能parseInt成数字，看下赋值是否正确。

Answer 6

一句话，格式转换异常！
你的是String 转 int异常

Answer 7

NumberFormatException 
转化不了;  看看是不是
Integer.parseInt(Integer.java:447) 这里 ()里面的要传入字符串 你是不是传int了

Answer 8

java.lang.NumberFormatException: For input string: "/i"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48) /i 是不能转化为数字的。
at cn.kookypanda.tool.DESPlus.hexStr2ByteArr(DESPlus.java:67) 看看
DESPlus.java
的第 67行，到底什么问题吧！