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127 lines
3.2 KiB
127 lines
3.2 KiB
package com.action;
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import com.bean.StudentBean;
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import com.dao.StudentDao;
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import com.opensymphony.xwork2.ActionSupport;
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import org.apache.struts2.ServletActionContext;
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import javax.servlet.http.HttpServletResponse;
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import javax.servlet.http.HttpSession;
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import java.io.PrintWriter;
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import java.util.List;
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public class StudentUpdateSave extends ActionSupport {
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//下面是Action内用于封装用户请求参数的属性
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private String Student_ID ;
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private String Student_Username ;
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private String Student_Password ;
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private String Student_Name ;
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private String Student_Sex ;
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private String Student_Class ;
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public String getStudent_ID() {
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return Student_ID;
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}
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public void setStudent_ID(String studentID) {
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Student_ID = studentID;
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}
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public String getStudent_Username() {
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return Student_Username;
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}
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public void setStudent_Username(String studentUsername) {
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Student_Username = studentUsername;
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}
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public String getStudent_Password() {
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return Student_Password;
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}
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public void setStudent_Password(String studentPassword) {
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Student_Password = studentPassword;
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}
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public String getStudent_Name() {
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return Student_Name;
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}
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public void setStudent_Name(String studentName) {
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Student_Name = studentName;
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}
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public String getStudent_Sex() {
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return Student_Sex;
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}
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public void setStudent_Sex(String studentSex) {
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Student_Sex = studentSex;
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}
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public String getStudent_Class() {
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return Student_Class;
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}
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public void setStudent_Class(String studentClass) {
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Student_Class = studentClass;
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}
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//处理用户请求的execute方法
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public String execute() throws Exception {
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//解决乱码，用于页面输出
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HttpServletResponse response=null;
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response=ServletActionContext.getResponse();
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response.setContentType("text/html;charset=UTF-8");
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response.setCharacterEncoding("UTF-8");
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PrintWriter out = response.getWriter();
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//创建session对象
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HttpSession session = ServletActionContext.getRequest().getSession();
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//验证是否正常登录
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if(session.getAttribute("id")==null){
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out.print("<script language='javascript'>alert('请重新登录！');window.location='Login.jsp';</script>");
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out.flush();out.close();return null;
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}
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//查询用户名是否存在
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List<StudentBean> list=new StudentDao().GetList("Student_Username='"+Student_Username+"' and Student_ID!="+Student_ID, "");
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if(list.size()>0)
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{
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out.print("<script language='javascript'>alert('用户名已经存在！');history.back(-1);</script>");
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out.flush();out.close();return null;
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}
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//修改
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StudentBean cnbean=new StudentBean();
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cnbean=new StudentDao().GetAllBean(Integer.parseInt(Student_ID));
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cnbean.setStudent_Username(Student_Username);
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cnbean.setStudent_Name(Student_Name);
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cnbean.setStudent_Sex(Student_Sex);
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cnbean.setStudent_Class(Student_Class);
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if(!(isInvalid(Student_Password)))
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{
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cnbean.setStudent_Password(Student_Password);
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}
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new StudentDao().Update(cnbean);
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//跳转
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out.print("<script language='javascript'>alert('修改成功！');window.location='StudentManager.action';</script>");
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out.flush();out.close();return null;
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}
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//判断是否空值
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private boolean isInvalid(String value) {
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return (value == null || value.length() == 0);
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}
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//测试
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public static void main(String[] args) {
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System.out.println();
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}
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}
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