StudentAction 控制器
package cn.action;
import java.util.ArrayList;
import java.util.List;
import cn.biz.StudentBiz;
import cn.biz.impl.StudentBizImpl;
import cn.entity.Classes;
import cn.entity.Student;
import com.opensymphony.xwork2.ActionSupport;
/**
* 学生 控制器
* */
@SuppressWarnings("serial")
public class StudentAction extends ActionSupport {
private StudentBiz studentBiz = new StudentBizImpl();
private List<Student> students = new ArrayList<Student>();
private Student student = new Student();
private Integer id;
private List<Classes> classesList = new ArrayList<Classes>();
private Integer classId;
/**
* 显示学生列表
* @return
*/
public String list(){
students = studentBiz.getAll();
return SUCCESS;
}
/**
* 根据 id 查询学生信息
* @return
*/
public String selected(){
student = studentBiz.getStudentById(id);
classesList = studentBiz.getClassesList();
return SUCCESS;
}
/**
* 修改学生信息
* @return
*/
public String updated(){
Classes classes = new Classes();
classes = studentBiz.getClassesById(classId);
student.setClasses(classes);
if(studentBiz.update(student) > 0){
students = studentBiz.getAll();
return SUCCESS;
}else{
return INPUT;
}
}
public StudentBiz getStudentBiz() {
return studentBiz;
}
public void setStudentBiz(StudentBiz studentBiz) {
this.studentBiz = studentBiz;
}
public List<Student> getStudents() {
return students;
}
public void setStudents(List<Student> students) {
this.students = students;
}
public Student getStudent() {
return student;
}
public void setStudent(Student student) {
this.student = student;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public List<Classes> getClassesList() {
return classesList;
}
public void setClassesList(List<Classes> classesList) {
this.classesList = classesList;
}
public Integer getClassId() {
return classId;
}
public void setClassId(Integer classId) {
this.classId = classId;
}
}
struts.xml 配置
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1//EN" "struts-2.1.dtd"> <struts> <constant name="struts.ui.theme" value="simple"></constant> <package name="default" namespace="/" extends="struts-default"> <!-- 显示学生列表 --> <action name="list" class="cn.action.StudentAction" method="list"> <result name="success">/index.jsp</result> </action> <!-- 根据id查询学生信息 --> <action name="selected" class="cn.action.StudentAction" method="selected"> <result name="success">/update.jsp</result> </action> <!-- 修改学生信息 --> <action name="updated" class="cn.action.StudentAction" method="updated"> <result name="success">/index.jsp</result> <result name="input">/update.jsp</result> </action> </package> </struts>
index.jsp 页面
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
*{ margin:0; padding:0; }
body{ font-family:"宋体"; color:#333; font-size:14px; background:#fff;}
a{ color:#069; text-decoration:underline;}
a:hover{ color:#f60; text-decoration:underline;}
h3{ text-align:center; line-height:40px;}
table{ margin:0 auto; line-height:23px;}
table tr th{ background:#B8860B;}
table tr td{ padding:0 8px;}
table .tdBg td{ background:#999}
</style>
<title>学生信息列表</title>
</head>
<body>
<h3>学生信息列表</h3>
<table border="1">
<tr>
<th>编号</th>
<th>姓名</th>
<th>性别</th>
<th>生日</th>
<th>电话</th>
<th>E-mail</th>
<th>班级</th>
</tr>
<s:iterator value="students" status="st">
<tr <s:if test="#st.even">class="tdBg"</s:if> ><!-- 隔行变色 -->
<td><s:a href="selected.action?id=%{id}"><s:property value="id"/></s:a></td>
<td><s:property value="sname"/></td>
<td><s:property value="gender"/></td>
<td><s:date name="birthday" format="yyyy-MM-dd" /></td>
<td><s:property value="telephone"/></td>
<td><s:property value="email"/></td>
<td><s:property value="classes.cname"/></td>
</tr>
</s:iterator>
</table>
</body>
</html>
效果图：
update.jsp 页面
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<style type="text/css">
*{ margin:0; padding:0; }
body{ font-family:"宋体"; color:#333; font-size:14px; background:#fff;}
h3{ text-align:center; line-height:40px;}
table{ margin:0 auto; line-height:23px;}
table input[type="text"]{ border:1px solid #333; height:18px; line-height:18px; padding-left:6px;}
table select{ border:1px solid #333; }
</style>
<script type="text/javascript">
//根据 id 获取元素
function $(id) {
return document.getElementById(id);
}
//开机加载
window.onload = function() {
//为表单注入 onsubmit 事件
document.updatedForm.onsubmit = function() {
return check();
};
};
//提交表单前验证
function check() {
var sname = $("sname");
var birthday = $("birthday");
var telephone = $("telephone");
var email = $("email");
if ("" == sname.value || "" == birthday.value|| "" == telephone.value|| "" == email.value) {
alert("姓名，生日，电话和E-mail不能为空");
return false;
}
var regEmail = /^\w+@\w+(\.[a-zA-Z]{2,3}){1,2}$/;
if(regEmail.test(email.value)==false){
alert("电子邮箱格式不正确，请重新输入");
return false;
}
return true;
}
</script>
<title>修改学员信息</title>
</head>
<body>
<h3>修改学员信息</h3>
<s:form action="updated" method="post" name="updatedForm">
<table>
<tr>
<td><input type="hidden" name="student.id" value="<s:property value='student.id'/>"/>姓名</td>
<td><input type="text" name="student.sname" id="sname" value="<s:property value='student.sname'/>" /></td>
</tr>
<tr>
<td>性别</td>
<td>
<s:if test='student.gender =="男"'>
<input type="radio" value="男" name="student.gender" checked="checked" />男
<input type="radio" value="女" name="student.gender" />女
</s:if>
<s:else>
<input type="radio" value="男" name="student.gender" />男
<input type="radio" value="女" name="student.gender" checked="checked" />女
</s:else>
</td>
</tr>
<tr>
<td>生日</td>
<td><input type="text" name="student.birthday" id="birthday" value="<s:date name='student.birthday' format='yyyy-MM-dd' />" /></td>
</tr>
<tr>
<td>电话</td>
<td><input type="text" name="student.telephone" id="telephone" value="<s:property value='student.telephone'/>" /></td>
</tr>
<tr>
<td>E-mail</td>
<td><input type="text" name="student.email" id="email" value="<s:property value='student.email'/>" /></td>
</tr>
<tr>
<td>班级</td>
<td>
<select name="classId">
<s:iterator value="classesList">
<s:if test="student.classes.id == id">
<option value="<s:property value='id'/>" selected="selected"><s:property value="cname"/></option>
</s:if>
<s:else>
<option value="<s:property value='id'/>"><s:property value="cname"/></option>
</s:else>
</s:iterator>
</select>
</td>
</tr>
<tr><td colspan="2" style="text-align:center"><input type="submit" value="保存" /> <input type="reset" value="重置" /></td></tr>
</table>
</s:form>
</body>
</html>
效果图：