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Mybatis集成Spring的实例代码_动力节点Java 学院整理

2019年07月19日 | 移动技术网IT编程 | 我要评论

所需要用到的其他工具或技术:

项目管理工具 : maven

前台web展示：jsp

其他框架:spring, spring mvc

数据库 : derby

新建一个maven的web项目

maven dependencies:

<!-- spring --> 
    <dependency> 
      <groupid>org.springframework</groupid> 
      <artifactid>spring-context</artifactid> 
      <version>4.0.0.release</version> 
    </dependency> 
    <dependency> 
      <groupid>org.springframework</groupid> 
      <artifactid>spring-webmvc</artifactid> 
      <version>4.0.0.release</version> 
    </dependency> 
    <dependency> 
      <groupid>org.springframework</groupid> 
      <artifactid>spring-tx</artifactid> 
      <version>4.0.0.release</version> 
    </dependency> 
    <dependency> 
      <groupid>org.springframework</groupid> 
      <artifactid>spring-jdbc</artifactid> 
      <version>4.0.0.release</version> 
    </dependency> 
    <!-- aspectj --> 
    <dependency> 
      <groupid>org.aspectj</groupid> 
      <artifactid>aspectjrt</artifactid> 
      <version>1.6.10</version> 
    </dependency> 
    <!-- logging --> 
    <dependency> 
      <groupid>org.slf4j</groupid> 
      <artifactid>slf4j-api</artifactid> 
      <version>1.6.6</version> 
    </dependency> 
    <dependency> 
      <groupid>org.slf4j</groupid> 
      <artifactid>jcl-over-slf4j</artifactid> 
      <version>1.6.6</version> 
      <scope>runtime</scope> 
    </dependency> 
    <dependency> 
      <groupid>org.slf4j</groupid> 
      <artifactid>slf4j-log4j12</artifactid> 
      <version>1.6.6</version> 
      <scope>runtime</scope> 
    </dependency> 
    <!-- @inject --> 
    <dependency> 
      <groupid>javax.inject</groupid> 
      <artifactid>javax.inject</artifactid> 
      <version>1</version> 
    </dependency> 
    <!-- servlet --> 
    <dependency> 
      <groupid>javax.servlet</groupid> 
      <artifactid>servlet-api</artifactid> 
      <version>2.5</version> 
      <scope>provided</scope> 
    </dependency> 
    <dependency> 
      <groupid>javax.servlet.jsp</groupid> 
      <artifactid>jsp-api</artifactid> 
      <version>2.1</version> 
      <scope>provided</scope> 
    </dependency> 
    <dependency> 
      <groupid>javax.servlet</groupid> 
      <artifactid>jstl</artifactid> 
      <version>1.2</version> 
    </dependency> 
    <!-- mybatis --> 
    <dependency> 
      <groupid>org.mybatis</groupid> 
      <artifactid>mybatis</artifactid> 
      <version>3.2.7</version> 
    </dependency> 
    <dependency> 
      <groupid>org.mybatis</groupid> 
      <artifactid>mybatis-spring</artifactid> 
      <version>1.2.1</version> 
    </dependency> 
    <!-- test --> 
    <dependency> 
      <groupid>junit</groupid> 
      <artifactid>junit</artifactid> 
      <version>4.9</version> 
      <scope>test</scope> 
    </dependency> 
    <!-- derby --> 
    <dependency> 
      <groupid>org.apache.derby</groupid> 
      <artifactid>derby</artifactid> 
      <version>10.10.2.0</version> 
    </dependency> 
    <dependency> 
      <groupid>org.apache.derby</groupid> 
      <artifactid>derbyclient</artifactid> 
      <version>10.10.2.0</version> 
    </dependency>

sql建表及数据插入

create table user_test_tb(  
id int primary key,  
username varchar(20) not null,  
password varchar(20) not null,  
nickname varchar(20) not null  
);    
insert into user_test_tb values(1,'1st','111','jack');  
insert into user_test_tb values(2,'2nd','222','rose');  
insert into user_test_tb values(3,'3rd','333','will');

web.xml（scr/main/webapp/web-inf下）

<?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"> 
  <!-- spring 的配置 --> 
  <context-param> 
    <param-name>contextconfiglocation</param-name> 
    <param-value>/web-inf/*context.xml</param-value> 
  </context-param> 
  <listener> 
    <listener-class>org.springframework.web.context.contextloaderlistener</listener-class> 
  </listener> 
  <servlet> 
    <servlet-name>appservlet</servlet-name> 
    <servlet-class>org.springframework.web.servlet.dispatcherservlet</servlet-class> 
    <load-on-startup>1</load-on-startup> 
  </servlet> 
  <servlet-mapping> 
    <servlet-name>appservlet</servlet-name> 
    <url-pattern>/</url-pattern> 
  </servlet-mapping> 
</web-app>

appservlet-servlet.xml（spring的servlet配置文件scr/main/webapp/web-inf下）

<?xml version="1.0" encoding="utf-8"?> 
<beans:beans xmlns="http://www.springframework.org/schema/mvc" 
  xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" 
  xmlns:beans="http://www.springframework.org/schema/beans" 
  xmlns:context="http://www.springframework.org/schema/context" 
  xsi:schemalocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd 
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd"> 
  <!-- 开启annotation支持 --> 
  <annotation-driven /> 
  <!-- spring的渲染层配置 --> 
  <beans:bean class="org.springframework.web.servlet.view.internalresourceviewresolver"> 
    <beans:property name="prefix" value="/web-inf/views/" /> 
    <beans:property name="suffix" value=".jsp" /> 
  </beans:bean> 
  <!-- spring的annotation默认扫描包 --> 
  <context:component-scan base-package="com.bjpowernode.practice" /> 
  <!-- 引入其他spring配置文件 --> 
  <beans:import resource="classpath:applicationcontext.xml" /> 
</beans:beans>

jsp文件

show.jsp(src/main/webapp/web-inf/views目录下)
<%@ page language="java" contenttype="text/html; charset=iso-8859-1" 
  pageencoding="iso-8859-1"%> 
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> 
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> 
<title>show all users</title> 
<style type="text/css"> 
*{ 
margin: 0px; 
padding: 0px; 
} 
</style> 
</head> 
<body> 
  <table border="1px" bordercolor="green"> 
    <thead> 
      <tr> 
        <th>user_name</th> 
        <th>password</th> 
        <th>nick_name</th> 
        <th>edit</th> 
        <th>delete</th> 
      </tr> 
      <c:foreach items="${users}" var="user" varstatus="status"> 
        <tr> 
          <td>${user.username}</td> 
          <td>${user.password}</td> 
          <td>${user.nickname}</td> 
          <td><a href="update/${user.id}" rel="external nofollow" >edit</a></td> 
          <td><a href="delete/${user.id}" rel="external nofollow" >delete</a></td> 
        </tr> 
      </c:foreach> 
    </thead> 
  </table> 
  <a href="insert" rel="external nofollow" >add new user</a> 
</body> 
</html>

update.jsp(src/main/webapp/web-inf/views目录下)

<%@ page language="java" contenttype="text/html; charset=iso-8859-1" 
  pageencoding="iso-8859-1"%> 
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> 
<title>update profile</title> 
</head> 
<body> 
  <form action="${user.id}" method="post"> 
    user id:${user.id}<br> 
    username:<input type="text" name="username" value="${user.username}"/><br> 
    password:<input type="text" name="password" value="${user.password}"/><br> 
    nickname:<input type="text" name="nickname" value="${user.nickname}"/><br> 
    <input type="submit" value="submit"> 
  </form> 
</body> 
</html>

insert.jsp(src/main/webapp/web-inf/views目录下)

<%@ page language="java" contenttype="text/html; charset=iso-8859-1" 
  pageencoding="iso-8859-1"%> 
<!doctype html public "-//w3c//dtd html 4.01 transitional//en" "http://www.w3.org/tr/html4/loose.dtd"> 
<html> 
<head> 
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1"> 
<title>insert profile</title> 
</head> 
<body> 
 
  <form action="" method="post"> 
    user id:<input type="text" name="id"><br> 
    username:<input type="text" name="username" /><br> 
    password:<input type="text" name="password"/><br> 
    nickname:<input type="text" name="nickname"/><br> 
    <input type="submit" value="submit"> 
  </form> 
</body> 
</html>

applicationcontext.xml(spring的application配置文件在src/main/resources目录下)

<?xml version="1.0" encoding="utf-8"?> 
<beans xmlns="http://www.springframework.org/schema/beans" 
  xmlns:xsi="http://www.w3.org/2001/xmlschema-instance" xmlns:aop="http://www.springframework.org/schema/aop" 
  xmlns:context="http://www.springframework.org/schema/context" 
  xmlns:lang="http://www.springframework.org/schema/lang" xmlns:mvc="http://www.springframework.org/schema/mvc" 
  xmlns:tx="http://www.springframework.org/schema/tx" 
  xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring" 
  xsi:schemalocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd 
    http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd 
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd 
    http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-4.0.xsd 
    http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd 
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd 
    http://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsd"> 
  <bean class="org.mybatis.spring.mapper.mapperscannerconfigurer"> 
    <property name="basepackage" value="com.bjpowernode.practice" /> 
    <property name="sqlsessionfactorybeanname" value="derbysqlsessionfactory" /> 
  </bean> 
  <!-- 配置derby驱动数据源 --> 
  <bean id="derbydatasource" 
    class="org.springframework.jdbc.datasource.drivermanagerdatasource"> 
    <property name="driverclassname" value="org.apache.derby.jdbc.clientdriver" /> 
    <property name="url" value="jdbc:derby://localhost:1527/freud;create=true" /> 
  </bean> 
  <bean id="sqlsessionfactory" class="org.mybatis.spring.sqlsessionfactorybean" 
    name="derbysqlsessionfactory"> 
    <property name="datasource" ref="derbydatasource" /> 
    <property name="mapperlocations" value="classpath*:com/freud/practice/*mapper.xml" /> 
  </bean> 
  <!-- 事务管理器 --> 
  <bean id="transactionmanager" class="org.springframework.jdbc.datasource.datasourcetransactionmanager"> 
    <property name="datasource" ref="derbydatasource" /> 
  </bean> 
  <!-- 开启基于注解的事务 --> 
  <tx:annotation-driven /> 
</beans>

java文件

usercontroller.java（在src/main/java/com.bjpowernode.practice.controller目录下）

package com.bjpowernode.practice.controller; 
import com.bjpowernode.practice.user; 
import com.bjpowernode.practice.usermapper; 
import java.util.list; 
import org.springframework.beans.factory.annotation.autowired; 
import org.springframework.stereotype.controller; 
import org.springframework.ui.model; 
import org.springframework.web.bind.annotation.pathvariable; 
import org.springframework.web.bind.annotation.requestmapping; 
import org.springframework.web.bind.annotation.requestmethod; 
import org.springframework.web.servlet.config.annotation.enablewebmvc; 
@enablewebmvc 
@controller 
public class usercontroller 
{ 
  @autowired 
  private usermapper usermapper; 
  /** 
   * 
   * 获得所有的user信息 
   * 
   * @param model 
   * @return 
   */ 
  @requestmapping(value = {"/", ""}, method = requestmethod.get) 
  public string getalluser(model model) 
  { 
    list<user> users = usermapper.getusers(); 
    system.out.println("show all user size:" + users.size()); 
    model.addattribute("users", users); 
    return "show"; 
  } 
  /** 
   * 
   * insert的get请求，跳转到insert的view即insert.jsp 
   * 
   * @return 
   */ 
  @requestmapping(value = {"/insert", ""}, method = requestmethod.get) 
  public string insertuser() 
  { 
    return "insert"; 
  } 
  /** 
   * 
   * insert的post请求，执行插入操作并返回showall页面 
   * 
   * @param user 
   * @return 
   */ 
  @requestmapping(value = {"/insert", ""}, method = requestmethod.post) 
  public string insertuserpost(user user) 
  { 
    usermapper.insertuser(user); 
    return "redirect:/"; 
  } 
  /** 
   * 
   * update的get请求，跳转到update的view即update.jsp 
   * 
   * @param id 
   * @param model 
   * @return 
   */ 
  @requestmapping(value = {"/update/{id}", ""}, method = requestmethod.get) 
  public string updateuser(@pathvariable string id, model model) 
  { 
    model.addattribute("user", usermapper.getuser(integer.valueof(id))); 
    return "update"; 
  } 
  /** 
   * 
   * update的post请求，执行更新操作并返回showall页面 
   * 
   * @param id 
   * @param user 
   * @return 
   */ 
  @requestmapping(value = {"/update/{id}", ""}, method = requestmethod.post) 
  public string updateuserpost(@pathvariable string id, user user) 
  { 
    usermapper.updateuser(user); 
    return "redirect:/"; 
  } 
  /** 
   * 
   * 通过id删除user 
   * 
   * @param id 
   * @return 
   */ 
  @requestmapping(value = {"/delete/{id}", ""}, method = requestmethod.get) 
  public string deleteuser(@pathvariable int id) 
  { 
    usermapper.deleteuser(id); 
    return "redirect:/"; 
  } 
}

user.java(在src/main/java/com.bjpowernode.practice)

package com.bjpowernode.practice; 
/** 
 * 
 * user 对象。 
 * 
 * @author freud kang 
 * 
 */ 
public class user 
{ 
  private integer id; 
  private string username; 
  private string password; 
  private string nickname; 
  public integer getid() 
  { 
    return id; 
  } 
  public void setid(integer id) 
  { 
    this.id = id; 
  } 
  public string getusername() 
  { 
    return username; 
  } 
  public void setusername(string username) 
  { 
    this.username = username; 
  } 
  public string getpassword() 
  { 
    return password; 
  } 
  public void setpassword(string password) 
  { 
    this.password = password; 
  } 
  public string getnickname() 
  { 
    return nickname; 
  } 
  public void setnickname(string nickname) 
  { 
    this.nickname = nickname; 
  } 
}

usermapper.java(在src/main/java/com.bjpowernode.practice目录下)

package com.bjpowernode.practice; 
import java.util.list; 
public interface usermapper 
{ 
  /** 
   * 
   * 获得所有user 
   * 
   * @return 
   */ 
  public list<user> getusers(); 
  /** 
   * 
   * 通过id获得user 
   * 
   * @param id 
   * @return 
   */ 
  public user getuser(int id); 
  /** 
   * 
   * 插入user 
   * 
   * @param user 
   */ 
  public void insertuser(user user); 
  /** 
   * 
   * 更新user 
   * 
   * @param user 
   */ 
  public void updateuser(user user); 
  /** 
   * 
   * 通过id删除user 
   * 
   * @param userid 
   */ 
  public void deleteuser(int userid); 
}

usermapper.xml（mybatis的mapper配置文件，在src/main/java/com.bjpowernode.practice目录下）

<?xml version="1.0" encoding="utf-8" ?>  
<!doctype mapper  
 public "-//mybatis.org//dtd mapper 3.0//en"  
 "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> 
<mapper namespace="com.bjpowernode.practice.usermapper"> 
  <!-- 查询 --> 
  <select id="getusers" resulttype="com.bjpowernode.practice.user"> 
    select * 
    from user_test_tb 
  </select> 
  <!-- 查询 --> 
  <select id="getuser" resulttype="com.bjpowernode.practice.user"> 
    select * 
    from user_test_tb 
    where id=#{id} 
  </select> 
  <!-- 插入 --> 
  <insert id="insertuser"> 
    insert into  
      user_test_tb  
    values(#{id},#{username},#{password},#{nickname}) 
  </insert> 
  <!-- 更改 --> 
  <update id="updateuser"> 
    update user_test_tb set 
      username = #{username}, 
      password = #{password}, 
      nickname = #{nickname} 
    where id = #{id} 
  </update> 
  <!-- 删除 --> 
  <delete id="deleteuser"> 
    delete from user_test_tb where id=#{id} 
  </delete> 
</mapper>

总结

以上所述是小编给大家介绍的mybatis集成spring的实例代码，希望对大家有所帮助

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Mybatis集成Spring的实例代码_动力节点Java 学院整理

2019年07月19日 | 移动技术网IT编程 | 我要评论

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