Today's abnormal Problem

Today, when you use <Bean: write name = "applycode"> On the JSP page

After a step of action (that is, the jsp1 page calls another page jsp2 through the JS function, and the JS function is called only after the jsp1 page form is submitted ), in this case, an error is always reported, indicating that the applycode value cannot be obtained on the JSP page.

After a long period of troubleshooting, it is found that the request is passed in the action. getsession (). setattribute ("applycode", Bill. getapplycode () is used to set parameters to obtain data in this case.