思路分析
代碼如下：
test2.jsp
<%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2020/4/21
Time: 15:19
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>test2</title>
</head>
<body>
<a href="http://localhost:8080/08_jsp/studentSearchServlet">搜索</a>
</body>
</html>
Student.java
package com.pojo;
/**
* @author LIXICHEN
* @create 2020-04-21 14:42
*/
public class Student {
private Integer id;
private String name;
private Integer age;
private String phone;
public Student() {
}
public Student(Integer id, String name, Integer age, String phone) {
this.id = id;
this.name = name;
this.age = age;
this.phone = phone;
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Integer getAge() {
return age;
}
public void setAge(Integer age) {
this.age = age;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
@Override
public String toString() {
return "Student{" +
"id=" + id +
", name='" + name + '\'' +
", age=" + age +
", phone='" + phone + '\'' +
'}';
}
}
StudentSeatchServlet.java
package com.study.servlet;
import com.pojo.Student;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
/**
* @author LIXICHEN
* @create 2020-04-21 15:09
*/
public class StudentSearchServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//獲取請求的參數
//發 sql 語句查詢學生信息
//使用for循環生成查詢到的結果做模擬
List<Student> students = new ArrayList<Student>();
for (int i = 0; i < 10; i++) {
int t = i + 1;
students.add(new Student(t, "name" + t, 18 + t, "phone" + t));
}
//保存查詢到的結果 到 request 域中
req.setAttribute("studentList",students);
//請求轉發 到 showStudent.jsp 頁面
req.getRequestDispatcher("/test/showStudent.jsp").forward(req,resp);
}
}
web.xml
<servlet>
<servlet-name>StudentSearchServlet</servlet-name>
<servlet-class>com.study.servlet.StudentSearchServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>StudentSearchServlet</servlet-name>
<url-pattern>/studentSearchServlet</url-pattern>
</servlet-mapping>
showStudent.jsp
<%@ page import="java.util.List" %>
<%@ page import="com.pojo.Student" %>
<%@ page import="java.util.ArrayList" %><%--
Created by IntelliJ IDEA.
User: Administrator
Date: 2020/4/21
Time: 14:40
To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>學生信息</title>
<style type="text/css">
table{
border: 1px blue solid;
width: 600px;
border-collapse: collapse;
}
td,tr,th{
border: 1px blue solid;
}
</style>
</head>
<body>
<%
List<Student> students = (List<Student>) request.getAttribute("studentList");
%>
<table>
<tr>
<th>編號</th>
<th>姓名</th>
<th>年齡</th>
<th>電話</th>
<th>操作</th>
</tr>
<%for (Student student : students) {%>
<tr align="center">
<td><%=student.getId()%></td>
<td><%=student.getName()%></td>
<td><%=student.getAge()%></td>
<td><%=student.getPhone()%></td>
<td>
<a href="">刪除</a>
<a href="">修改</a>
</td>
</tr>
<% } %>
</table>
</body>
</html>
結果展示：
