Maven+SSM框架實現(xiàn)簡單的增刪改查
Spring介紹:
spring 使用基本的 JavaBean 來完成以前只可能由 EJB 完成的事情。然而, Spring的用途不僅限于服務(wù)器端的開發(fā)。從簡單性、可測試性和松耦合的角度而言,任何Java 應(yīng)用都可以從 Spring 中受益。 簡單來說, Spring 是一個輕量級的控制反轉(zhuǎn)(IoC )和面向切面( AOP )的容器框架。
SpringMVC介紹
Spring MVC 屬于 SpringFrameWork 的后續(xù)產(chǎn)品,已經(jīng)融合在Spring Web Flow 里面。 Spring MVC 分離了 控制器 、模型 對象 、分派器以及處理程序?qū)ο蟮慕巧@種分離讓它們更容易進行定制。
MyBatis介紹
MyBatis 本是 apache 的一個開源項目 iBatis , 2010 年這個項目由apache software foundation 遷移到了 google code ,并且改名為 MyBatis 。MyBatis 是一個基于 Java 的 持久層 框架。 iBATIS 提供的 持久層 框架包括SQL Maps 和 Data Access Objects ( DAO ) MyBatis 消除了幾乎所有的 JDBC 代碼和參數(shù)的手工設(shè)置以及結(jié)果集的檢索。 MyBatis 使用簡單的 XML 或注解用于配置和原始映射,將接口和 Java 的 POJOs ( Plain Old Java Objects ,普通的 Java 對象)映射成數(shù)據(jù)庫中的記錄。
首先不是maven架構(gòu)整合的 SSM 框架
創(chuàng)建數(shù)據(jù)庫、表db_zsl t_user user_t【最下面有sql語句】
1.項目整體結(jié)構(gòu)

2.添加相關(guān)jar 包

3.項目整體結(jié)構(gòu)出來了
4.創(chuàng)建model【User】
package comlytmodel;
/**
* 用戶
* @author
*
*/
public class User {
private int id;
private String userName;
private String age;
@Override
public String toString() {
return "User [id=" + id + ", age=" + age + ", userName=" + userName
+ "]";
}
public User(){
super();
}
public int getId() {
return id;
}
public void setId(int id) {
thisid = id;
}
public String getAge() {
return age;
}
public void setAge(String age) {
thisage = age;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
thisuserName = userName;
}
public User(int id, String age, String userName) {
super();
thisid = id;
thisage = age;
thisuserName = userName;
}
}
5.創(chuàng)建DAO接口【在mybatis中 mapper就相當(dāng)于dao】
package comlytmapper;
import javautilList;
import comlytmodelUser;
/**
* 做為 DAO的接口
* @author
*/
public interface UserMapper {
void save(User user);
boolean update(User user);
boolean delete(int id);
User findById(int id);
List<User> findAll();
}
6.實現(xiàn)dao接口【mybatis中就是UserMapper.xml文件】
<?xml version="0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatisorg//DTD Mapper 0//EN"
"http://mybatisorg/dtd/mybatis-3-mapperdtd">
<!--
namespace:必須與對應(yīng)的接口全類名一致 UserMapperjava
id :必須與對應(yīng)接口的某個對應(yīng)的方法名一致即必須要和UserMapperjava接口中的方法同名。
-->
<mapper namespace="comlytmapperUserMapper">
<insert id="save" parameterType="User">
insert into t_user(user_name,user_age) values(#{userName},#{age})
</insert>
<update id="update" parameterType="User">
update t_user set user_name=#{userName},user_age=#{age} where user_id=#{id}
</update>
<delete id="delete" parameterType="int">
delete from t_user where user_id=#{id}
</delete>
<!-- mybsits_config中配置的alias類別名,也可直接配置resultType為類路徑 -->
<select id="findById" parameterType="int" resultType="User">
select user_id id,user_name userName,user_age age from t_user where user_id=#{id}
</select>
<select id="findAll" resultType="User">
select user_id id,user_name userName,user_age age from t_user
</select>
</mapper>
這里對這個xml文件作幾點說明:
1、namespace必須與對應(yīng)的接口全類名一致。
2、id必須與對應(yīng)接口的某個對應(yīng)的方法名一致即必須要和UserMapper.java接口中的方法同名。
7.mybatis與Spring整合【spring-common.xml】放在src的根目錄下
對于Mybatis和Spring的整合是這篇博文的重點,需要配置的內(nèi)容在下面有詳細的解釋。
<?xml version="0" encoding="UTF-8"?>
<beans xmlns="http://wwwspringframeworkorg/schema/beans"
xmlns:xsi="http://wwwworg/2001/XMLSchema-instance" xmlns:p="http://wwwspringframeworkorg/schema/p"
xmlns:context="http://wwwspringframeworkorg/schema/context" xmlns:tx="http://wwwspringframeworkorg/schema/tx"
xsi:schemaLocation="
http://wwwspringframeworkorg/schema/beans
http://wwwspringframeworkorg/schema/beans/spring-beans-xsd
http://wwwspringframeworkorg/schema/context
http://wwwspringframeworkorg/schema/context/spring-context-xsd
http://wwwspringframeworkorg/schema/tx
http://wwwspringframeworkorg/schema/tx/spring-tx-xsd">
<!-- Mybatis和Spring的整合 -->
<!-- 數(shù)據(jù)源 : DriverManagerDataSource -->
<bean id="dataSource"
class="orgspringframeworkjdbcdatasourceDriverManagerDataSource">
<property name="driverClassName" value="commysqljdbcDriver" />
<property name="url" value="jdbc:mysql://localhost:3306/db_zsl" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<!--
mybatis的SqlSession的工廠: SqlSessionFactoryBean dataSource:引用數(shù)據(jù)源
MyBatis定義數(shù)據(jù)源,同意加載配置
-->
<bean id="sqlSessionFactory" class="orgmybatisspringSqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:mybatis-configxml" />
</bean>
<!--
mybatis自動掃描加載Sql映射文件/接口 : MapperScannerConfigurer sqlSessionFactory
basePackage:指定sql映射文件/接口所在的包(自動掃描)
-->
<bean class="orgmybatisspringmapperMapperScannerConfigurer">
<property name="basePackage" value="comlytmapper"></property>
<property name="sqlSessionFactory" ref="sqlSessionFactory"></property>
</bean>
<!--
事務(wù)管理 : DataSourceTransactionManager dataSource:引用上面定義的數(shù)據(jù)源
-->
<bean id="txManager"
class="orgspringframeworkjdbcdatasourceDataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 使用聲明式事務(wù)
transaction-manager:引用上面定義的事務(wù)管理器
-->
<tx:annotation-driven transaction-manager="txManager" />
</beans>
8.mybatis配置文件【mybatis-config.xml】放在src目錄下
<?xml version="0" encoding="UTF-8"?>
<!DOCTYPE configuration PUBLIC "-//mybatisorg//DTD Config 0//EN"
"http://mybatisorg/dtd/mybatis-3-configdtd">
<configuration>
<!-- 實體類,簡稱 -設(shè)置別名 -->
<typeAliases>
<typeAlias alias="User" type="comlytmodelUser" />
</typeAliases>
<!-- 實體接口映射資源 -->
<!--
說明:如果xxMapperxml配置文件放在和xxMapperjava統(tǒng)一目錄下,mappers也可以省略,因為orgmybatisspringmapperMapperFactoryBean默認會去查找與xxMapperjava相同目錄和名稱的xxMapperxml
-->
<mappers>
<mapper resource="com/lyt/mapper/userMapperxml" />
</mappers>
</configuration>
配置log4j.properties
### set log levels ###
log4jrootLogger = info , Console , D
#Console
log4jappenderConsole=orgapachelog4jConsoleAppender
log4jappenderConsolelayout=orgapachelog4jPatternLayout
log4jappenderConsolelayoutConversionPattern=%d [%t] %-5p [%c] - %m%n
log4jloggerjavasqlResultSet=INFO
log4jloggerorgapache=INFO
log4jloggerjavasqlConnection=INFO
log4jloggerjavasqlStatement=INFO
log4jloggerjavasqlPreparedStatement=INFO
#output2file
log4jappenderD = orgapachelog4jDailyRollingFileAppender
log4jappenderDFile = D\:/logs/loglog
log4jappenderDAppend = true
log4jappenderDThreshold = INFO \#\# \u00E8\u00BE\u0093\u00E5\u0087\u00BAinfo\u00E7\u00BA\u00A7\u00E5\u0088\u00AB\u00E4\u00BB\u00A5\u00E4\u00B8\u008A\u00E7\u009A\u0084\u00E6\u0097\u00A5\u00E5\u00BF\u0097
log4jappenderDlayout = orgapachelog4jPatternLayout
log4jappenderDlayoutConversionPattern = %-d{yyyy-MM-dd HH\:mm\:ss} [ %t\:%r ] - [ %p ] %m%n
10.整合Springmvc
配置【spring-mvc.xml】放在src根目錄下
<?xml version="0" encoding="UTF-8"?>
<beans xmlns="http://wwwspringframeworkorg/schema/beans"
xmlns:xsi="http://wwwworg/2001/XMLSchema-instance" xmlns:context="http://wwwspringframeworkorg/schema/context"
xmlns:mvc="http://wwwspringframeworkorg/schema/mvc"
xsi:schemaLocation="http://wwwspringframeworkorg/schema/beans
http://wwwspringframeworkorg/schema/beans/spring-beansxsd
http://wwwspringframeworkorg/schema/context
http://wwwspringframeworkorg/schema/context/spring-context-xsd
http://wwwspringframeworkorg/schema/mvc
http://wwwspringframeworkorg/schema/mvc/spring-mvc-xsd">
<!-- 注解掃描包 -->
<context:component-scan base-package="comlytcontroller" />
<context:component-scan base-package="comlytservice" />
<!-- 開啟注解 -->
<mvc:annotation-driven />
<!--
配置靜態(tài)資源,直接映射到對應(yīng)的文件夾,不被DispatcherServlet處理,04新增功能,需要重新設(shè)置spring-mvc-xsd
-->
<mvc:resources mapping="/img/**" location="/img/" />
<mvc:resources mapping="/js/**" location="/js/" />
<mvc:resources mapping="/css/**" location="/css/" />
<mvc:resources mapping="/html/**" location="/html/" />
<!-- 定義跳轉(zhuǎn)的文件的前后綴 ,視圖模式配置-->
<bean id="viewResolver"
class="orgspringframeworkwebservletviewInternalResourceViewResolver">
<!-- 這里的配置我的理解是自動給后面action的方法return的字符串加上前綴和后綴,變成一個 可用的url地址 -->
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value="jsp" />
</bean>
</beans>
11.配置web.xml
<?xml version="0" encoding="UTF-8"?>
<web-app version="5" xmlns="http://javasuncom/xml/ns/javaee"
xmlns:xsi="http://wwwworg/2001/XMLSchema-instance"
xsi:schemaLocation="http://javasuncom/xml/ns/javaee
http://javasuncom/xml/ns/javaee/web-app_2_xsd">
<!-- 加載Spring容器配置 -->
<listener>
<listener-class>orgspringframeworkwebcontextContextLoaderListener</listener-class>
</listener>
<!-- 設(shè)置Spring容器加載所有的配置文件的路徑 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<!-- <param-value>classpath:config/spring-*xml</param-value> -->
<param-value>classpath:spring-commonxml,classpath:spring-mvcxml</param-value>
</context-param>
<!-- 配置SpringMVC核心控制器 -->
<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>orgspringframeworkwebservletDispatcherServlet</servlet-class>
<!-- 配置初始配置化文件,前面contextConfigLocation看情況二選一 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-commonxml,classpath:spring-mvcxml</param-value>
</init-param>
<!-- 啟動加載一次 -->
<load-on-startup>1</load-on-startup>
</servlet>
<!--為DispatcherServlet建立映射 -->
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<!-- 此處可以可以配置成*do,對應(yīng)struts的后綴習(xí)慣 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 防止Spring內(nèi)存溢出監(jiān)聽器 -->
<listener>
<listener-class>orgspringframeworkwebutilIntrospectorCleanupListener</listener-class>
</listener>
<!-- 解決工程編碼過濾器 -->
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>orgspringframeworkwebfilterCharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<welcome-file-list>
<welcome-file>indexjsp</welcome-file>
</welcome-file-list>
</web-app>
12.建立service以及service實現(xiàn)【UserService.java】
package comlytservice;
import javautilList;
import comlytmodelUser;
public interface UserService {
void save(User user);
boolean update(User user);
boolean delete(int id);
User findById(int id);
List<User> findAll();
}
【UserServiceImpl.java】
package comlytserviceimpl;
import javautilList;
import javaxannotationResource;
import orgspringframeworkstereotypeService;
import orgspringframeworktransactionannotationTransactional;
import comlytmapperUserMapper;
import comlytmodelUser;
import comlytserviceUserService;
@Service
@Transactional
// 此處不再進行創(chuàng)建SqlSession和提交事務(wù),都已交由spring去管理了。
public class UserServiceImpl implements UserService {
@Resource
private UserMapper mapper;
/**
* 根據(jù) id 刪除 數(shù)據(jù)
*/
public boolean delete(int id) {
return mapperdelete(id);
}
/**
* 查詢User的全部數(shù)據(jù)
*/
public List<User> findAll() {
List<User> findAllList = mapperfindAll();
return findAllList;
}
/**
* 根據(jù) id 查詢 對應(yīng)數(shù)據(jù)
*/
public User findById(int id) {
User user = mapperfindById(id);
return user;
}
/**
* 新增數(shù)據(jù)
*/
public void save(User user) {
mappersave(user);
}
/**
* 根據(jù) id 修改對應(yīng)數(shù)據(jù)
*/
public boolean update(User user) {
return mapperupdate(user);
}
}
13.建立Controller【UserController.java】
package comlytcontroller;
import javaioIOException;
import javaioPrintWriter;
import javautilList;
import javaxservlethttpHttpServletRequest;
import javaxservlethttpHttpServletResponse;
import orgspringframeworkbeansfactoryannotationAutowired;
import orgspringframeworkstereotypeController;
import orgspringframeworkuiModel;
import orgspringframeworkwebbindannotationRequestMapping;
import comlytmodelUser;
import comlytserviceUserService;
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userService;
/**
* 獲取所有用戶列表
* @param request
* @return
*/
@RequestMapping("/getAllUser")
public String getAllUser(HttpServletRequest request,Model model){
List<User> user = userServicefindAll();
modeladdAttribute("userList", user);
requestsetAttribute("userList", user);
return "/allUser";
}
/**
* 跳轉(zhuǎn)到添加用戶界面
* @param request
* @return
*/
@RequestMapping("/toAddUser")
public String toAddUser(){
return "/addUser";
}
/**
* 添加用戶并重定向
* @param user
* @param request
* @return
*/
@RequestMapping("/addUser")
public String addUser(User user,Model model){
userServicesave(user);
return "redirect:/user/getAllUser";
}
/**
*編輯用戶
* @param user
* @param request
* @return
*/
@RequestMapping("/updateUser")
public String updateUser(User user,HttpServletRequest request,Model model){
if(userServiceupdate(user)){
user = userServicefindById(usergetId());
requestsetAttribute("user", user);
modeladdAttribute("user", user);
return "redirect:/user/getAllUser";
}else{
return "/error";
}
}
/**
* 根據(jù)id查詢單個用戶
* @param id
* @param request
* @return
*/
@RequestMapping("/getUser")
public String getUser(int id,HttpServletRequest request,Model model){
requestsetAttribute("user", userServicefindById(id));
modeladdAttribute("user", userServicefindById(id));
return "/editUser";
}
/**
* 刪除用戶
* @param id
* @param request
* @param response
*/
@RequestMapping("/delUser")
public void delUser(int id,HttpServletRequest request,HttpServletResponse response){
String result = "{\"result\":\"error\"}";
if(userServicedelete(id)){
result = "{\"result\":\"success\"}";
}
responsesetContentType("application/json");
try {
PrintWriter out = responsegetWriter();
outwrite(result);
} catch (IOException e) {
eprintStackTrace();
}
}
}
至此 大部分架構(gòu)以及代碼已經(jīng)搭建完成
我們來做前臺頁面--修改index.jsp
<%@ page language="java" import="javautil*" pageEncoding="utf-8"%>
<%
String path = requestgetContextPath();
String basePath = requestgetScheme() + "://"
+ requestgetServerName() + ":" + requestgetServerPort()
+ path + "/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<title>首頁</title>
</head>
<body>
<h5>
<a href="<%=basePath%>user/getAllUser" rel="external nofollow" >進入用戶管理頁</a>
</h5>
</body>
</html>
在 WEB-INF 下新建jsp文件夾【里面新建以下文件】【addUser.jsp】【allUser.jsp】【editUser.jsp】
addUser.jsp內(nèi)容
<%@ page language="java" import="javautil*" pageEncoding="UTF-8"%>
<%
String path = requestgetContextPath();
String basePath = requestgetScheme()+"://"+requestgetServerName()+":"+requestgetServerPort()+path+"/";
%>
<%@ taglib uri="http://javasuncom/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<title>添加用戶</title>
<script type="text/javascript">
function addUser(){
var form = documentforms[0];
formaction = "<%=basePath%>user/addUser";
formmethod="post";
formsubmit();
}
</script>
</head>
<body>
<h1><%=path%>添加用戶<%=basePath%></h1>
<form action="" name="userForm">
姓名:<input type="text" name="userName">
年齡:<input type="text" name="age">
<input type="button" value="添加" onclick="addUser()">
</form>
</body>
</html>
allUser.jsp
<%@ page language="java" import="javautil*" pageEncoding="UTF-8"%>
<%
String path = requestgetContextPath();
String basePath = requestgetScheme()+"://"+requestgetServerName()+":"+requestgetServerPort()+path+"/";
%>
<%@ taglib uri="http://javasuncom/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<script type="text/javascript" src="js/jquery-js"></script>
<title>用戶列表</title>
<script type="text/javascript">
function del(id){
$get("<%=basePath%>user/delUser?id=" + id,function(data){
if("success" == dataresult){
alert("刪除成功");
windowlocationreload();
}else{
alert("刪除失敗");
}
});
}
</script>
</head>
<body>
<h6><a href="<%=basePath%>user/toAddUser" rel="external nofollow" >添加用戶</a></h6>
<table border="1">
<tbody>
<tr>
<th>姓名</th>
<th>年齡</th>
<th>操作</th>
</tr>
<c:if test="${!empty userList }">
<c:forEach items="${userList}" var="user">
<tr>
<td>${useruserName }</td>
<td>${userage }</td>
<td>
<a href="<%=basePath%>user/getUser?id=${userid}" rel="external nofollow" >編輯</a>
<a href="javascript:del('${userid }')" rel="external nofollow" >刪除</a>
</td>
</tr>
</c:forEach>
</c:if>
</tbody>
</table>
</body>
</html>
editUser.jsp
<%@ page language="java" import="javautil*" pageEncoding="UTF-8"%>
<%
String path = requestgetContextPath();
String basePath = requestgetScheme()+"://"+requestgetServerName()+":"+requestgetServerPort()+path+"/";
%>
<%@ taglib uri="http://javasuncom/jsp/jstl/core" prefix="c"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
<title>編輯用戶</title>
<script type="text/javascript">
function updateUser(){
var form = documentforms[0];
formaction = "<%=basePath%>user/updateUser";
formmethod="post";
formsubmit();
}
</script>
</head>
<body>
<h1>添加用戶</h1>
<form action="" name="userForm">
<input type="hidden" name="id" value="${userid }"/>
姓名:<input type="text" name="userName" value="${useruserName }"/>
年齡:<input type="text" name="age" value="${userage }"/>
<input type="button" value="編輯" onclick="updateUser()"/>
</form>
</body>
</html>
到此 簡單的整合SSM 【基本的操作內(nèi)容已經(jīng)完成】
讓你們看下界面運行,地址:http://localhost:8088/SpringMVC_Spring_mybatis/
首頁:

點擊編輯進去:

點擊添加進去:

由于我在網(wǎng)絡(luò)問題 圖片暫時沒有上傳上去?!粳F(xiàn)在我把圖片都正上去了,希望多多支持】
對應(yīng)的數(shù)據(jù)庫 表
/*
Navicat MySQL Data Transfer
Source Server : localhost
Source Server Version : 50515
Source Host : localhost:3306
Source Database : db_zsl
Target Server Type : MYSQL
Target Server Version : 50515
File Encoding : 65001
Date: 2016-05-16 16:10:51
*/
SET FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for `t_user`
-- ----------------------------
DROP TABLE IF EXISTS `t_user`;
CREATE TABLE `t_user` (
`user_id` int(11) NOT NULL AUTO_INCREMENT,
`user_name` varchar(20) NOT NULL,
`user_age` varchar(20) NOT NULL,
PRIMARY KEY (`user_id`)
) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of t_user
-- ----------------------------
INSERT INTO `t_user` VALUES ('2', '朱佳鵬', '25');
INSERT INTO `t_user` VALUES ('3', '傻狍子', '150');
INSERT INTO `t_user` VALUES ('4', 'jiuqiyuliang', '23');
INSERT INTO `t_user` VALUES ('5', 'jiuqiyuliang', '23');
INSERT INTO `t_user` VALUES ('6', 'jiuqiyuliang', '23');
INSERT INTO `t_user` VALUES ('7', 'jiuqiyuliang', '23');
INSERT INTO `t_user` VALUES ('9', 'liyintao123', '23123');
-- ----------------------------
-- Table structure for `user_t`
-- ----------------------------
DROP TABLE IF EXISTS `user_t`;
CREATE TABLE `user_t` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`user_name` varchar(40) NOT NULL,
`password` varchar(255) NOT NULL,
`age` int(4) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8;
-- ----------------------------
-- Records of user_t
-- ----------------------------
INSERT INTO `user_t` VALUES ('1', '測試', 'sfasgfaf', '24');
以上就是本文的全部內(nèi)容,希望對大家的學(xué)習(xí)有所幫助,也希望大家多多支持腳本之家。
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