lab4Plus

  　　1、Struts2框架下ActionSupport的使用（附加） 在Myeclipse中新建web项目lab4plus； 在实验四的基础上修改LoginAction，使之继承ActionSupport，并重写Validate方法，在其中增加FieldError、ActionError和ActionMessage； 修改login.jsp、loginSuccess.jsp和loginFail.jsp页面，用和标签输出信息； 将lab4plus布署在Tomcat服务器上； 运行login.jsp页面，并记录运行结果、主要处理流程与关键代码。(, Struts2 framework ActionSupport use (additional) Create a new web project in Myeclipse lab4plus In the experiment on the basis of four modified LoginAction, so inheritance ActionSupport, and override the Validate method, in which the increase FieldError, ActionError and ActionMessage Modify login.jsp, loginSuccess.jsp and loginFail.jsp page with and tag output information The lab4plus deployed on Tomcat server Run login.jsp page and record the results, the main processes and key code. )