String aaa = (String) session.getAttribute(SISnet.SESSION_ID_STR + ".len");
其中len是前页传到session中的一个结果集的length,结果报错
java.lang.ClassCastException: java.lang.Integer
org.apache.jsp.Huiyi_jsp._jspService(Huiyi_jsp.java:66)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
其中len是前页传到session中的一个结果集的length,结果报错
java.lang.ClassCastException: java.lang.Integer
org.apache.jsp.Huiyi_jsp._jspService(Huiyi_jsp.java:66)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:94)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:324)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
String aaa = String.valueOf(session.getAttribute(SISnet.SESSION_ID_STR + ".len"));
这样写。
session.setAttribute(String,Object)
要么是Integer吧((Integer)session.setAttribute(String,Object)).toString();
String aaa = session.getAttribute(SISnet.SESSION_ID_STR + ".len") + "";
或
String aaa = String.valueOf(session.getAttribute(SISnet.SESSION_ID_STR + ".len"));