SpringMVC(四) 連線oracle資料庫操作
package com.dragon.entity;
public class UserInfo { private int user_id; private String user_name; private String user_password; public int getUser_id() { return user_id; } public void setUser_id(int userId) { user_id = userId; } public String getUser_name() { return user_name; } public void setUser_name(String userName) { user_name = userName; } public String getUser_password() { return user_password; } public void setUser_password(String userPassword) { user_password = userPassword; } }
Dao層
package com.dragon.dao;
import java.util.List;
import com.dragon.entity.UserInfo;
public interface UserInfoDao { public abstract List<UserInfo> getAll(); public abstract int insertUserInfo(UserInfo userInfo); }
實現層
package com.dragon.dao.impl;
import java.util.ArrayList; import java.util.List;
import org.springframework.jdbc.core.namedparam.MapSqlParameterSource; import org.springframework.jdbc.core.simple.ParameterizedBeanPropertyRowMapper; import org.springframework.jdbc.core.simple.SimpleJdbcDaoSupport;
import com.dragon.dao.UserInfoDao; import com.dragon.entity.UserInfo;
public class UserInfoDaoImpl extends SimpleJdbcDaoSupport implements UserInfoDao { /** * 獲得所有 */ public List<UserInfo> getAll() { // TODO Auto-generated method stub List<UserInfo> userInfoList = new ArrayList<UserInfo>(); String sql = "select * from UserInfo"; userInfoList = super.getSimpleJdbcTemplate().query(sql,ParameterizedBeanPropertyRowMapper.newInstance(UserInfo.class)); return userInfoList; } /** * 增加 */ public int insertUserInfo(UserInfo userInfo) { // TODO Auto-generated method stub String sql="INSERT INTO UserInfo values(:user_id,:user_name,:user_password)"; //返回受影響的行數 int count = super.getSimpleJdbcTemplate().update(sql, new MapSqlParameterSource().addValue("user_id", userInfo.getUser_id()).addValue("user_name", userInfo.getUser_name()).addValue("user_password", userInfo.getUser_password())); return count; }
}
Controller類
package com.dragon.controller;
import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map;
import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractController;
import com.dragon.dao.UserInfoDao; import com.dragon.entity.UserInfo;
/**
*查詢所有
*/
public class UserInfoController extends AbstractController {
private UserInfoDao userInfoDao; public UserInfoDao getUserInfoDao() { return userInfoDao; }
public void setUserInfoDao(UserInfoDao userInfoDao) { this.userInfoDao = userInfoDao; } @Override protected ModelAndView handleRequestInternal(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception { // TODO Auto-generated method stub //定義使用者集合 List<UserInfo> userInfoList = new ArrayList<UserInfo>(); //呼叫獲得所有的方法 userInfoList = this.userInfoDao.getAll(); //建立集合 Map<String,Object> models = new HashMap<String, Object>(); //儲存物件 models.put("userInfoList", userInfoList); return new ModelAndView("index.jsp",models); }
}
新增
package com.dragon.controller;
import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map;
import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView; import org.springframework.web.servlet.mvc.AbstractController;
import com.dragon.dao.UserInfoDao; import com.dragon.entity.UserInfo;
public class AddUserInfoController extends AbstractController { private UserInfoDao userInfoDao; public UserInfoDao getUserInfoDao() { return userInfoDao; }
public void setUserInfoDao(UserInfoDao userInfoDao) { this.userInfoDao = userInfoDao; } @Override protected ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception { // TODO Auto-generated method stub UserInfo userInfo = new UserInfo(); //獲得使用者的輸入 userInfo.setUser_id(Integer.valueOf(request.getParameter("user_id"))); userInfo.setUser_name(request.getParameter("user_name")); userInfo.setUser_password(request.getParameter("user_password")); System.out.println(userInfo.getUser_id()); int i = this.userInfoDao.insertUserInfo(userInfo); System.out.println(i); //定義使用者集合 List<UserInfo> userInfoList = new ArrayList<UserInfo>(); //呼叫獲得所有的方法 userInfoList = this.userInfoDao.getAll(); //建立集合 Map<String,Object> models = new HashMap<String, Object>(); //儲存物件 models.put("userInfoList", userInfoList); return new ModelAndView("index.jsp",models); }
}
jdbc.properties配置檔案
jdbc.driverClassName=oracle.jdbc.driver.OracleDriver jdbc.url=jdbc:oracle:thin:@localhost:1521:orcl jdbc.username=system jdbc.password=orcl
Web。xml中的配置
<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" > <!-- 配置spring mvc 支援--> <servlet> <servlet-name>springapp</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <!-- 配置spring對映 --> <servlet-mapping> <servlet-name>springapp</servlet-name> <url-pattern>*.do</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>
springapp-servlet.xml
<bean id="userController" name="/userController.do" class="com.dragon.controller.UserInfoController"> <property name="userInfoDao" ref="userInfoDao"></property> </bean> <bean id="addUserInfoController" name="/add.do" class="com.dragon.controller.AddUserInfoController"> <property name="userInfoDao" ref="userInfoDao"></property> </bean> <!-- --> <bean id="userInfoDao" class="com.dragon.dao.impl.UserInfoDaoImpl"> <property name="dataSource" ref="dataSource"></property> </bean>
<!-- 配置事務管理器 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="${jdbc.driverClassName}"/> <property name="url" value="${jdbc.url}"/> <property name="username" value="${jdbc.username}"/> <property name="password" value="${jdbc.password}"/> </bean> <!-- 載入檔案的路徑 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>classpath:jdbc.properties</value> </list> </property> </bean> <!-- --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean>
<aop:config> <aop:advisor pointcut="execution(* *com.dragon.dao.*(..))" advice-ref="txAdvice"/> </aop:config>
<tx:advice id="txAdvice"> <tx:attributes> <tx:method name="get*" read-only="true"></tx:method> <tx:method name="insert*" propagation="REQUIRED"></tx:method> <tx:method name="update*" propagation="REQUIRED"></tx:method> <tx:method name="delete*" propagation="REQUIRED"></tx:method> <tx:method name="*" read-only="true"/> </tx:attributes> </tx:advice>
</beans>
index.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ taglib prefix="j" uri="http://java.sun.com/jsp/jstl/core" %>
<% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> --> </head> <body> <table> <tr> <td>編號</td> <td>名稱</td> <td>密碼</td> <td>操作</td> </tr> <j:forEach var="userInfo" items="${userInfoList }" > <tr> <td> <j:out value="${userInfo.user_id}"></j:out> </td> <td> <j:out value="${userInfo.user_name}"></j:out></td> <td> <j:out value="${userInfo.user_password}"></j:out></td> <td><a href="" >刪除</a></td> </tr> </j:forEach> <tr > <td colspan="4"><a href="add.jsp">新增</a></td> </tr> </table> </body> </html>
add.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'add.jsp' starting page</title> <meta http-equiv="pragma" content="no-cache"> <meta http-equiv="cache-control" content="no-cache"> <meta http-equiv="expires" content="0"> <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> <meta http-equiv="description" content="This is my page"> <!-- <link rel="stylesheet" type="text/css" href="styles.css"> -->
</head> <body> <form action="add.do" method="post"> 編號：<input type="text" value="" name="user_id"/><br/> 名稱：<input type="text" value="" name="user_name"/><br/> 密碼：<input type="text" value="" name="user_password"/><br/> <input value="提交" type="submit" /> </form> </body> </html>
訪問的路徑
慢慢的理解 其實這些官方的文件中都是有的 這種方法不是太好 一個操作就需要建立一個controller 類
資料庫指令碼
CREATE TABLE UserInfo( user_id NUMBER(5) PRIMARY KEY NOT NULL, user_name NVARCHAR2(50) , user_password nvarchar2(50) ); insert into UserInfo values(1,'1001','000000'); insert into UserInfo values(2,'1002','000000'); insert into UserInfo values(3,'1003','000000'); insert into UserInfo values(4,'1004','000000'); insert into UserInfo values(5,'1005','000000'); commit;