Java编程

开发平台：
Java

EditEmployeeAction.java：源码内容
							package strutsds;
import java.io.IOException;
import javax.servlet.ServletContext;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionErrors;
import org.apache.struts.action.ActionError;
import javax.sql.DataSource;
import java.sql.Connection;
import java.sql.Statement;
import java.sql.ResultSet;
import java.sql.SQLException;
public class EditEmployeeAction extends Action {
protected void updateUser(ActionForm form)throws Exception {
      String user = null;
      Connection conn = null;
      Statement stmt = null;
      ResultSet rs = null;
      ServletContext context = servlet.getServletContext();
      DataSource dataSource = (DataSource)
      context.getAttribute(Action.DATA_SOURCE_KEY);
      try {
        EmployeeActionForm eForm = (EmployeeActionForm)form;
        conn = dataSource.getConnection();
        stmt = conn.createStatement();
        StringBuffer sqlString =new StringBuffer("update employees ");
        sqlString.append("set password='"
                         + eForm.getPassword() + "', ");
        sqlString.append("roleid="
                         + eForm.getRoleid() + ", ");
        sqlString.append("name='"
                         + eForm.getName() + "', ");
        sqlString.append("phone='"
                         + eForm.getPhone() + "', ");
        sqlString.append("email='"
                         + eForm.getEmail() + "', ");
        sqlString.append("depid="
                         + eForm.getDepid());
        sqlString.append(" where username='"
                         + eForm.getUsername() + "'");
        stmt.execute(sqlString.toString());
        conn.commit();
        System.out.println("udpate in edit employee actioni"+sqlString);
      }
      finally {
      if (rs != null) {
      rs.close();
      }
      if (stmt != null) {
      stmt.close();
      }
      if (conn != null) {
      conn.close();
      }
      }
      }
  public ActionForward perform(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse httpServletResponse) {
    /**@todo: complete the business logic here, this is just a skeleton.*/
    // Default target to success
     String target = "success";
     /*EmployeesActionMapping employeesMapping =(EmployeesActionMapping)mapping;
// Does this action require the user to login
     if ( employeesMapping.isLoginRequired() ) {
     HttpSession session = request.getSession();
     if ( session.getAttribute("USER") == null ) {
// The user is not logged in
     target = new "login";
     ActionErrors errors = new ActionErrors();
     errors.add(ActionErrors.GLOBAL_ERROR,
     new ActionError("errors.login.required"));
// Report any errors we have discovered
//back to the original form
     if (!errors.empty()) {
     saveErrors(request, errors);
     }
     return (mapping.findForward(target));
     }
     }*/
     if ( isCancelled(request) ) {
// Cancel pressed back to employee list
     return (mapping.findForward("success"));
     }
     try {
     updateUser(form);
     }
     catch (Exception e) {
     System.err.println("Setting target to error");
     target = "error";
     ActionErrors errors = new ActionErrors();
     errors.add(ActionErrors.GLOBAL_ERROR,
     new ActionError("errors.database.error",
     e.getMessage()));
// Report any errors
     if (!errors.empty()) {
     saveErrors(request, errors);
     }
     }
// Forward to the appropriate View
     return (mapping.findForward(target));
     }
}

						