<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>主页面</title> <style type="text/css"> td{ border: 1px solid; } #div1{ color: red; } </style> </head> <body> <div> <form action="FindUserByIdTest"> 姓名： <input type="text" id="username" name="username"> 年龄： <input type="text" id="userage" name="userage"> 性别： <input type="text" id="usergender" name="usergender"> <input type="submit" value="查询"> <a href="add.jsp" >添加用户信息</a> <a href="FindAllUserTest" >查询所有用户</a> </form> </div> <div> <form action="UpdateUserTest"> 编号： <input type="text" id="userid" name="userid"> 姓名： <input type="text" id="username" name="username"> 年龄： <input type="text" id="userage" name="userage"> 性别： <input type="text" id="usergender" name="usergender"> Email： <input type="email" id="useremail" name="useremail"> 籍贯： <input type="text" id="useraddress" name="useraddress"> <input type="submit" value="更改"> </form> </div> <div> <table> <tr> <td>${sessionScope.oneuser.id}</td> <td>${sessionScope.oneuser.name}</td> <td>${sessionScope.oneuser.age}</td> <td>${sessionScope.oneuser.gender}</td> <td>${sessionScope.oneuser.email}</td> <td>${sessionScope.oneuser.address}</td> </tr> </table> <table> <tr> <td>序号</td> <td>编号</td> <td>姓名</td> <td>年龄</td> <td>性别</td> <td>Email</td> <td>籍贯</td> </tr> <c:forEach items="${sessionScope.user}" var="u" varStatus="s"> <tr> <td>${s.count}</td> <td>${u.id}</td> <td>${u.name}</td> <td>${u.age}</td> <td>${u.gender}</td> <td>${u.email}</td> <td>${u.address}</td> </tr> </c:forEach> </table> </div> <div> <form action="DeleteUserTest"> 输入要删除用户的编号： <input type="number" name="userid"> <input type="submit" value="删除"> </form> </div> <div id="div1"><%=request.getSession().getAttribute("tsxx")==null?"":request.getSession().getAttribute("tsxx")%></div> <%request.getSession().removeAttribute("tsxx"); request.getSession().removeAttribute("user"); request.getSession().removeAttribute("oneuser");%> </body> </html>
<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>Insert title here</title> </head> <body> <form action="${pageContext.request.contextPath}/JdbcInsertTest" method="post"> 姓名：<br> <input type="text" id="username" name="username"><br> 年龄：<br> <input type="text" id="userage" name="userage"><br> 性别：<br> <input type="text" id="usergender" name="usergender"><br> Email：<br> <input type="text" id="useremail" name="useremail"><br> 籍贯：<br> <input type="text" id="useraddress" name="useraddress"><br> <input type="submit" value="提交"> </form> </body> </html>
package Dao; import java.util.List; import org.springframework.dao.DataAccessException; import org.springframework.jdbc.core.BeanPropertyRowMapper; import org.springframework.jdbc.core.JdbcTemplate; import Utils.JDBCUtils; import domain.User; public class UserDao { private JdbcTemplate template=new JdbcTemplate(JDBCUtils.getDataSource()); //定义增删改查方法 //增 public void addUser(User user) { System.setProperty("file.encoding", "UTF-8"); String sql="insert into User value (null,?,?,?,?,?)"; template.update(sql,user.getName(),user.getAge(),user.getGender(),user.getEmail(),user.getAddress()); } //删 public void deleteUser(int id) { System.setProperty("file.encoding", "UTF-8"); String sql="delete from User where id=?"; template.update(sql, id); } //改 public void updateUser(User user) { System.setProperty("file.encoding", "UTF-8"); String sql="update User set name = ?,age = ? ,gender = ? ,email = ?, address = ? where id = ?"; template.update(sql,user.getName(),user.getAge(),user.getGender(),user.getEmail(),user.getAddress(),user.getId()); } //查 public User queryUser(User user) { System.setProperty("file.encoding", "UTF-8"); try { String sql="select * from User where name=? and age=? and gender=?"; User returnuser = template.queryForObject(sql,new BeanPropertyRowMapper<User>(User.class) ,user.getName(),user.getAge(),user.getGender()); return returnuser; }catch (Exception e) { // TODO: handle exception e.printStackTrace(); return null; } } //查所有 public List<User> queryAllUser() { System.setProperty("file.encoding", "UTF-8"); try { String sql="select * from User"; List<User> returnusers = template.query(sql, new BeanPropertyRowMapper<User>(User.class)); return returnusers; }catch (Exception e) { // TODO: handle exception e.printStackTrace(); return null; } } }
package domain; public class User { private int id; private String name; private int age; private String gender; private String email; private String address; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getGender() { return gender; } public void setGender(String gender) { this.gender = gender; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } }
package Utils; import java.io.IOException; import java.io.InputStream; import java.security.spec.DSAGenParameterSpec; import java.sql.Connection; import java.sql.SQLException; import java.util.Properties; import javax.sql.DataSource; import com.alibaba.druid.pool.DruidDataSourceFactory; public class JDBCUtils { private static DataSource ds; static { Properties pro=new Properties(); InputStream rc = JDBCUtils.class.getClassLoader().getResourceAsStream("druid.properties"); try { pro.load(rc); ds=DruidDataSourceFactory.createDataSource(pro); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (Exception e) { // TODO Auto-generated catch block e.printStackTrace(); } } public static DataSource getDataSource() { return ds; } public Connection getConnection() throws SQLException { return ds.getConnection(); } }
driverClassName=com.mysql.jdbc.Driver url=jdbc:mysql://localhost:3306/mydb username=root password=root initialSize=5 maxActive=10 maxWait=3000
package servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import Dao.UserDao; /** * Servlet implementation class DeleteUserTest */ @WebServlet("/DeleteUserTest") public class DeleteUserTest extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public DeleteUserTest() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub request.setCharacterEncoding("utf-8"); int id = Integer.parseInt(request.getParameter("userid")); UserDao dao = new UserDao(); dao.deleteUser(id); request.getSession().setAttribute("tsxx", "删除成功"); request.getRequestDispatcher("/zhuye.jsp").forward(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }
package servlet; import java.io.IOException; import java.util.List; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import Dao.UserDao; import domain.User; /** * Servlet implementation class FindAllUserTest */ @WebServlet("/FindAllUserTest") public class FindAllUserTest extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public FindAllUserTest() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub request.setCharacterEncoding("utf-8"); UserDao dao = new UserDao(); List<User> users = dao.queryAllUser(); request.getSession().setAttribute("user", users); request.getRequestDispatcher("/zhuye.jsp").forward(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }
package servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import Dao.UserDao; import domain.User; import sun.misc.Perf.GetPerfAction; /** * Servlet implementation class FindUserByIdTest */ @WebServlet("/FindUserByIdTest") public class FindUserByIdTest extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public FindUserByIdTest() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub request.setCharacterEncoding("utf-8"); String name = request.getParameter("username"); int age = Integer.parseInt(request.getParameter("userage")); String gender = request.getParameter("usergender"); User user = new User(); user.setName(name); user.setAge(age); user.setGender(gender); UserDao dao = new UserDao(); User rtuser = dao.queryUser(user); request.getSession().setAttribute("oneuser", rtuser); request.getRequestDispatcher("/zhuye.jsp").forward(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }
package servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import Dao.UserDao; import domain.User; /** * Servlet implementation class JdbcInsertTest */ @WebServlet("/JdbcInsertTest") public class JdbcInsertTest extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public JdbcInsertTest() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub request.setCharacterEncoding("utf-8"); String name = request.getParameter("username"); int age = Integer.parseInt(request.getParameter("userage")); String gender = request.getParameter("usergender"); String email = request.getParameter("useremail"); String address = request.getParameter("useraddress"); User user = new User(); user.setName(name); user.setAge(age); user.setGender(gender); user.setEmail(email); user.setAddress(address); UserDao dao = new UserDao(); dao.addUser(user); request.getSession().setAttribute("tsxx", "添加成功"); request.getRequestDispatcher("/zhuye.jsp").forward(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }
package servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import Dao.UserDao; import domain.User; /** * Servlet implementation class UpdateUserTest */ @WebServlet("/UpdateUserTest") public class UpdateUserTest extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public UpdateUserTest() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub request.setCharacterEncoding("utf-8"); int id = Integer.parseInt(request.getParameter("userid")); String name = request.getParameter("username"); int age = Integer.parseInt(request.getParameter("userage")); String gender = request.getParameter("usergender"); String email = request.getParameter("useremail"); String address = request.getParameter("useraddress"); User user = new User(); user.setId(id); user.setName(name); user.setAge(age); user.setGender(gender); user.setEmail(email); user.setAddress(address); UserDao dao = new UserDao(); dao.updateUser(user); request.getSession().setAttribute("tsxx", "修改成功"); request.getRequestDispatcher("/zhuye.jsp").forward(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }
导入jar包：
