Question

HTTP Status 500 - java.lang.IllegalArgumentException

description The server encountered an internal error that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: java.lang.IllegalArgumentException
org.apache.struts.action.RequestProcessor.processException(RequestProcessor.java:535)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:433)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

root cause
java.lang.IllegalArgumentException
java.sql.Date.valueOf(Date.java:143)
com.dao.BorrowDAO.insertBorrow(BorrowDAO.java:36)
com.action.Borrow.bookborrow(Borrow.java:122)
com.action.Borrow.execute(Borrow.java:30)
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:432)
javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)

请问这个问题如何解决

Answer 1

首先问题出现在这一行上：java.sql.Date.valueOf(Date.java:143)

java.sql.Date.valueOf(String s)方法：
这个方法是将字符串转换成 Date 值，s - 表示 "yyyy-mm-dd" 形式的日期的 String 对象
不知道你的DD是不是这样格式的字符串，你应该在前面打印出来确认一下。

Answer 2

日期输入格式不对吧

追问

请问具体应该怎么解决啊

代码是这样的

Answer 3

应该是日期数据类型或者转化异常。

追问

请问具体应该怎么解决啊

代码是这样的