ssm整合
SSM項目搭建
1 整合夾包：maven構建 pom.xml以下
<dependencies>
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.3</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-io/commons-io -->
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>3.2.4.RELEASE</version>
<scope>test</scope>
</dependency>
<!-- springMVC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<!-- spring jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<!-- spring aop -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aspects</artifactId>
<version>4.3.7.RELEASE</version>
</dependency>
<!-- mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.2</version>
</dependency>
<!-- mybatis與spring整合 -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.1</version>
</dependency>
<!-- 數據庫鏈接池 和驅動-->
<dependency>
<groupId>c3p0</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.1.2</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.40</version>
</dependency>
<!-- jstl junit servlet-api -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<!-- spring單元測試 -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>4.3.7.RELEASE</version>
<scope>test</scope>
</dependency>
</dependencies>
生成夾包結構如圖：css
2 spring-mybatis.xml配置
<?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:context="http://www.springframework.org/schema/context"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd">
<!-- 註解掃描包 -->
<context:component-scan base-package="com.login.**.mapper"></context:component-scan>
<context:component-scan base-package="com.login.**.services"></context:component-scan>
<context:component-scan base-package="com.login.**.servicesimpl"></context:component-scan>
<!-- 導入資源文件 -->
<context:property-placeholder location="classpath:db.properties"/>
<!-- 配置 C3P0 數據源 -->
<bean id="dataSource"
class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="user" value="${test.username}"></property>
<property name="password" value="${test.password}"></property>
<property name="jdbcUrl" value="${test.url}"></property>
<property name="driverClass" value="${test.driver}"></property>
<!-- <property name="initialPoolSize" value="${jdbc.initPoolSize}"></property>
<property name="maxPoolSize" value="${jdbc.maxPoolSize}"></property> -->
</bean>
<!-- 整合mybatis -->
<!--第1步: 建立sqlSessionFactory工廠 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:SqlConfig.xml"></property>
</bean>
<!-- 配置mybatis的代理接口開發 * 接口類名和映射文件必須同名 * 接口類和映射文件必須在同一個目 錄下 * 接口的映射文件的namespace名稱必須是接口的全限定名
* 接口的方法名必須和映射的statement的id一致 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 掃描全部dao接口的實現，加入到ioc容器中 -->
<property name="basePackage" value="com.login.mapper"></property>
<property name="SqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
<!-- 配置事務 -->
<!-- 1. 配置事務管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 2. 配置事務切入點, 以及把事務切入點和事務屬性關聯起來 -->
<aop:config>
<aop:pointcut expression="execution(* com.atguigu.spring.tx.xml.service.*.*(..))"
id="txPointCut"/>
<aop:advisor advice-ref="txAdvice" pointcut-ref="txPointCut"/>
</aop:config>
<!-- 3. 配置事務屬性 -->
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<!-- 根據方法名指定事務的屬性 -->
<tx:method name="purchase" propagation="REQUIRES_NEW"/>
<tx:method name="get*" read-only="true"/>
<tx:method name="find*" read-only="true"/>
<tx:method name="*"/>
</tx:attributes>
</tx:advice>
</beans>
3 mybatis.xml配置
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE configuration
PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
<!-- 別名設置 -->
<!-- <typeAliases>
<package name="com.ssm.model" />
</typeAliases> -->
<!-- mybatis分頁插件 -->
<!-- <plugins>
<plugin interceptor="com.github.pagehelper.PageHelper"></plugin>
</plugins> -->
</configuration>
4 spring-mvc.xml配置
<?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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<!-- 配置掃描包 -->
<!-- 組件掃描 -->
<context:component-scan base-package="com.login.web">
</context:component-scan>
<!-- 讓處理器適配器支持json數據解 -->
<mvc:annotation-driven/>
<!-- <mvc:message-converters>
<bean
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>application/json;charset=UTF-8</value>避免IE出現下載JSON文件的狀況
</list>
</property>
</bean>
</mvc:message-converters> -->
<!-- </mvc:annotation-driven> -->
<!-- 試圖解析器 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<!-- 配置文件上傳 -->
<bean id="multipartResolver"
class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
<!-- 指定文件中文名的編碼 -->
<property name="defaultEncoding" value="UTF-8" />
<!-- 指定所上傳文件的總大小,單位字節。注意maxUploadSize屬性的限制不是針對單個文件，而是全部文件的容量之和 -->
<property name="maxUploadSize" value="3145728" />
</bean>
<!-- 資源映射 不攔截 的 靜態資源 -->
<mvc:resources location="/" mapping="/**/*.html" />
<mvc:resources location="/" mapping="/**/*.js" />
<mvc:resources location="/" mapping="/**/*.css" />
<mvc:resources location="/" mapping="/**/*.png" />
<mvc:resources location="/" mapping="/**/*.jpg" />
<mvc:resources location="/" mapping="/**/*.gif" />
<mvc:resources location="/" mapping="/**/*.eot" />
<mvc:resources location="/" mapping="/**/*.svg" />
<mvc:resources location="/" mapping="/**/*.ttf" />
<mvc:resources location="/" mapping="/**/*.woff" />
</beans>
5 web.xml配置
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd" > <web-app> <!-- 加載spring容器 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mybatis.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- 字符編碼過濾器 --> <filter> <filter-name>CharacterEncodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <init-param> <param-name>encoding</param-name> <param-value>utf-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>CharacterEncodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> <!-- 配置SpringMVC核心控制器 --> <servlet> <servlet-name>springDispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring-mvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>springDispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <display-name>Archetype Created Web Application</display-name> </web-app>
經過上面的配置 項目答題上已經配置完成 接下來就是具體邏輯的書寫：html
mapper層中應該定義一個接口寫要用的方法， 在mappeer.xml中寫相應的sql語句：前端
接口：java
package com.login.mapper;
import java.util.List;
import org.apache.ibatis.annotations.Param;
import com.login.entity.User;
public interface UserMapper {
/*根據id查單個用戶*/
public User findUserById(int id);
/*查詢全部的用戶*/
public List<User> findAllUsers();
/*新增單個用戶用戶*/
public void inserUser(User user);
/*修改用戶信息 傳入多個參數*/
public void updateUser(@Param("user") User user,@Param("id")int id);
/*根據用戶id 刪除用戶*/
public void deleteUser(int id);
}
mapper.xml:mysql
<?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">
<!-- namespace 表示命名空間 必須和 該mapper對應的接口的全路徑 -->
<mapper namespace="com.login.mapper.UserMapper">
<resultMap type="com.login.entity.User" id="userResult">
<id property="userid" column="user_id"/>
<result property="username" column="user_name" />
<result property="userpwd" column="user_pwd"/>
<result property="userphone" column="user_phone"/>
</resultMap>
<!-- 根據id查出User類 public User findUserById(int id); -->
<select id="findUserById" parameterType="int" resultMap="userResult">
SELECT * from user where user_id=#{id}
</select>
<!--查詢全部的用戶 public List<User> findAllUsers(); -->
<select id="findAllUsers" resultMap="userResult">
select user_id, user_name,user_pwd,user_phone from user
</select>
<!-- 新增單個用戶用戶 public void inserUser(User user);-->
<insert id="inserUser" parameterType="com.login.entity.User">
insert into user(user_id,user_name,user_pwd,user_phone)
values(null,#{username},#{userpwd},#{userphone})
</insert>
<!-- 修改用戶信息 public void updateUser(User user); -->
<update id="updateUser">
update user set user_name=#{user.username},
user_pwd=#{user.userpwd},user_phone=#{user.userphone}
where user_id=#{id}
</update>
<!-- /*根據用戶id 刪除用戶 public void deleteUser(int id); -->
<delete id="deleteUser" parameterType="int">
delete from user where user_id=#{id}
</delete>
</mapper>
以上就是具體的dao層寫法 service層將dao層注入 git
web層代碼以下： github
package com.login.web;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import com.login.entity.User;
import com.login.services.UserServices;
@Controller
public class UserServlet {
@Autowired
private UserServices userServices;
/*根據id查單個用戶*/
@RequestMapping("/findUserById")
public User findUserById(int id){
User user=userServices.findUserById(id);
return user;
}
/*查詢全部用戶的信息*/
@RequestMapping("/findAllUsers")
public String findAllUsers(Model mode) {
List<User> list=userServices.findAllUsers();
mode.addAttribute("list",list);
return "userMessage";
}
/*新增單個用戶用戶*/
@RequestMapping("/inserUser")
public String inserUser(HttpServletRequest request){
String username=request.getParameter("username");
String userpwd=request.getParameter("userpwd");
String userphone=request.getParameter("userphone");
User user=new User(username, userpwd, userphone);
userServices.inserUser(user);
return "start";
}
/*修改用戶信息*/
@RequestMapping("/updateUser")
public void updateUser(User user,int id){
userServices.updateUser(user, id);
}
/*根據用戶id 刪除用戶*/
@RequestMapping("/deleteUser")
public String deleteUser(int id){
userServices.deleteUser(id);
return "userMessage";
}
}
前端界面：web
上面只是簡單實現了ssm框架的整合，實現了增刪改查操做，沒有考慮相關的校驗。spring
mybatis分頁
1 導入mybatis分頁夾包 pagehelper-4.1.5.jarsql
2 mybatis配置分頁
<plugins>
<plugin interceptor="com.github.pagehelper.PageHelper"></plugin>
</plugins>
3 分頁控制層編寫
4 前臺分頁jstl方式顯示
@RequestMapping("/userInfo")
public String getUsers(@RequestParam(value="pn",defaultValue="1")Integer pn,Model model){
//從第一條開始 每頁查詢五條數據
PageHelper.startPage(pn, 5);
List<User> list=userServices.findAllUsers();
//將用戶信息放入PageInfo對象裏
PageInfo page = new PageInfo(list,5);
model.addAttribute("pageInfo", page);
System.out.println(page);
return "pagelist";
}
<c:forEach items="${pageInfo.list }" var="user11">
<div>${user11.userid }ddd</div>
<div>${user11.username }name</div>
</c:forEach>
<!-- 分頁文字信息，其中分頁信息都封裝在pageInfo中 -->
<div class="col-md-6">
當前第：${pageInfo.pageNum}頁，總共：${pageInfo.pages}頁，總共：${pageInfo.total}條記錄
</div>
<div class="col-md-6">
<nav aria-label="Page navigation">
<ul class="pagination">
<li><a href="${pageContext.request.contextPath}/userInfo?pn=1">首頁</a></li>
<c:if test="${pageInfo.hasPreviousPage }">
<li>
<a href="${pageContext.request.contextPath}/userInfo?pn=${pageInfo.pageNum-1}" aria-label="Previous">
<span aria-hidden="true">«前一晚上</span>
</a>
</li>
</c:if>
<c:forEach items="${pageInfo.navigatepageNums }" var="page_Num">
<c:if test="${page_Num == pageInfo.pageNum }">
<li class="active"><a href="#">${ page_Num}</a></li>
</c:if>
<c:if test="${page_Num != pageInfo.pageNum }">
<li><a href="${pageContext.request.contextPath}/userInfo?pn=${ page_Num}">${ page_Num}</a></li>
</c:if>
</c:forEach>
<c:if test="${pageInfo.hasNextPage }">
<li>
<a href="${pageContext.request.contextPath}/userInfo?pn=${pageInfo.pageNum+1}" aria-label="Next">
<span aria-hidden="true">»後一頁</span>
</a>
</li>
</c:if>
<li><a href="${pageContext.request.contextPath}/userInfo?pn=${pageInfo.pages}">末頁</a></li>
</ul>
</nav>
</div>
</body>
注意：
1 Autowired注入的（一般）是接口
2 在測試的時候須要先將配置文件加載進來才能實例化對象，才能調用方法 對於spring能夠採用下面方式加載配置文件
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations={"classpath:SqlConfig.xml","classpath:spring-mybatis.xml" })
3 在spring-mvc 配置中 須要有適配器 /應攝器 否則進不了requestMapping 中
4 resultMap的用法 resultType要求數據庫字段和屬性名相同 否則賦不了值
解決編譯問題
<!-- <plugins> java編譯插件 jkd1.8 <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.2</version> <configuration> <source>1.8</source> <target>1.8</target> <encoding>UTF-8</encoding> </configuration> </plugin> </plugins> -->
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相關文章
- 1. SSM--------------------SSM整合
- 2. SSM 整合之Mybaits整合
- 3. SSM整合
- 4. SSM整合redis
- 5. 整合SSM(一)
- 6. SSM整合（一）
- 7. SSM整合shiro
- 8. ssm整合
- 9. SSM的整合
- 10. ssm整合redis