jquery jsp 删除和修改。? 400 报错
jquery jsp 删除和修改。? 400 报错 <%@ page language="java" import="java.util." import="java.sql." pageEncoding="utf-8"%>
<jsp:useBean id="dbConn" class="pack_convert.DBConnXmgl"/>
<jsp:useBean id="projectinfo" class="net.gvsun.database.ProjectInfo"/>
<%@ page session="true" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<%
String id = request.getParameter("id");
int aid = Integer.parseInt(id);
boolean bol = projectinfo.deleteCash(aid);
if(bol){
out.println("{"success":"true","msg":"添加成功！"}");
}else{
out.println("{"failure":"failure","msg":"出错了，请重新操作！"}");
}
response.setHeader("Refresh","1; URL=../../projectFinance.jsp");//1秒后自动跳转页面
//out.println(bol);//打印结果
dbConn.releaseConn();
%>
这行报以下错误：java.lang.NumberFormatException: For input string: "undefined"
at java.lang.NumberFormatException.forInputString(NumberFormatException.java:48)
at java.lang.Integer.parseInt(Integer.java:449)
at java.lang.Integer.parseInt(Integer.java:499)
at org.apache.jsp.projectinfo.jsp.deleteCash_jsp._jspService(deleteCash_jsp.java:82)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:386)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:313)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:260)
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.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:662)
这是为什么啊？
写回答
-
https://developer.aliyun.com/profile/5yerqm5bn5yqg?spm=a2c6h.12873639.0.0.6eae304abcjaIB你木有判断id是否传过来，并且传过来的是否是数字，你现在的应该是传过来了个JS的空值“ undefined ”，JAVA格式化出错######哦，懂了######同楼上，类型转换异常######哦，动了
2020-06-04 17:47:26赞同 展开评论 打赏
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