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一个jsp计数器的错误！(怎么回事)
来源: 互联网 发布时间：2015-06-16
本文导语: 500 Servlet Exception java.lang.NumberFormatException: a1 at java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1213) at java.lang.Double.parseDouble(Double.java:201) at _caculate__jsp._jspService(/4 cat/caculate.jsp:15) at com.caucho.jsp.JavaPage.se...
500 Servlet Exception
java.lang.NumberFormatException: a1
at java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1213)
at java.lang.Double.parseDouble(Double.java:201)
at _caculate__jsp._jspService(/4 cat/caculate.jsp:15)
at com.caucho.jsp.JavaPage.service(JavaPage.java:87)
at com.caucho.jsp.JavaPage.subservice(JavaPage.java:81)
at com.caucho.jsp.Page.service(Page.java:474)
at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:166)
at com.caucho.server.http.Invocation.service(Invocation.java:277)
at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:129)
at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:216)
at com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:158)
at com.caucho.server.TcpConnection.run(TcpConnection.java:140)
at java.lang.Thread.run(Thread.java:536)
--------------------------------------------------------------------------------
Resin 2.0.2 (built Mon Aug 27 16:52:49 PDT 2001)
java.lang.NumberFormatException: a1
at java.lang.FloatingDecimal.readJavaFormatString(FloatingDecimal.java:1213)
at java.lang.Double.parseDouble(Double.java:201)
at _caculate__jsp._jspService(/4 cat/caculate.jsp:15)
at com.caucho.jsp.JavaPage.service(JavaPage.java:87)
at com.caucho.jsp.JavaPage.subservice(JavaPage.java:81)
at com.caucho.jsp.Page.service(Page.java:474)
at com.caucho.server.http.FilterChainPage.doFilter(FilterChainPage.java:166)
at com.caucho.server.http.Invocation.service(Invocation.java:277)
at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:129)
at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:216)
at com.caucho.server.http.HttpRequest.handleConnection(HttpRequest.java:158)
at com.caucho.server.TcpConnection.run(TcpConnection.java:140)
at java.lang.Thread.run(Thread.java:536)
--------------------------------------------------------------------------------
Resin 2.0.2 (built Mon Aug 27 16:52:49 PDT 2001)
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看报错应该是因为你的变量类型和数据库字段的类型的不匹配问题
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建议你最好在调用放访问量的文本用绝对路径。
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