idea搭建 ssm
阿新 • • 發佈：2018-11-19
demo 下載連結：https://pan.baidu.com/s/1YdD2ojdAIYl7xwc6zqLC1w 密碼：57y8
一、準備工作
1、mysql 建立 ssm_demo 資料庫
2、建立 user 表
idea 建立maven 專案（不用教了吧）
建立如下目錄結構
pom.xml
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>cn.ws</groupId> <artifactId>ssm_demo</artifactId> <version>1.0-SNAPSHOT</version> <packaging>war</packaging> <name>ssm_demo Maven Webapp</name> <url>http://maven.apache.org</url> <properties> <!-- 設定專案編碼編碼 --> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <!-- spring版本號 --> <spring.version>4.3.5.RELEASE</spring.version> <!-- mybatis版本號 --> <mybatis.version>3.4.1</mybatis.version> </properties> <dependencies> <!-- java ee --> <dependency> <groupId>javax</groupId> <artifactId>javaee-api</artifactId> <version>7.0</version> </dependency> <!-- 單元測試 --> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> </dependency> <!-- 實現slf4j介面並整合 --> <dependency> <groupId>ch.qos.logback</groupId> <artifactId>logback-classic</artifactId> <version>1.2.2</version> </dependency> <!-- JSON --> <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.8.7</version> </dependency> <!-- 資料庫 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.41</version> <scope>runtime</scope> </dependency> <!-- 資料庫連線池 --> <dependency> <groupId>com.mchange</groupId> <artifactId>c3p0</artifactId> <version>0.9.5.2</version> </dependency> <!-- MyBatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- mybatis/spring整合包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency> <!-- Spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> </dependencies> <build> <finalName>ssm_demo</finalName> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <!-- 設定JDK版本 --> <source>1.8</source> <target>1.8</target> </configuration> </plugin> <!-- mybatis逆向工程外掛 --> <plugin> <groupId>org.mybatis.generator</groupId> <artifactId>mybatis-generator-maven-plugin</artifactId> <version>1.3.2</version> <configuration> <!--配置檔案的位置--> <configurationFile>src\main\resources\mybatis-generator.xml</configurationFile> <verbose>true</verbose> <overwrite>true</overwrite> </configuration> </plugin> </plugins> </build> </project>
logback.xml
<?xml version="1.0" encoding="UTF-8"?> <configuration debug="true"> <appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender"> <encoder> <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} - %msg%n</pattern> </encoder> </appender> <root level="debug"> <appender-ref ref="STDOUT"/> </root> </configuration>
jdbc.properties 輸入自己的賬號密碼
jdbc.driver=com.mysql.jdbc.Driver #資料庫地址 jdbc.url=jdbc:mysql://localhost:3306/ssm_demo?autoReconnect=true&useUnicode=true&characterEncoding=utf8 #使用者名稱 jdbc.username=root #密碼 jdbc.password=sweet #最大連線數 c3p0.maxPoolSize=30 #最小連線數 c3p0.minPoolSize=10 #關閉連線後不自動commit c3p0.autoCommitOnClose=false #獲取連線超時時間 c3p0.checkoutTimeout=10000 #當獲取連線失敗重試次數 c3p0.acquireRetryAttempts=2
spring-mvc.xml
<?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: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/context
http://www.springframework.org/schema/context/spring-context.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<!-- 掃描web相關的bean -->
<context:component-scan base-package="ws.lyao.controller"/>
<!-- 開啟SpringMVC註解模式 -->
<mvc:annotation-driven/>
<!-- 靜態資源預設servlet配置 -->
<mvc:default-servlet-handler/>
<!-- 配置jsp 顯示ViewResolver -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/>
<property name="prefix" value="/WEB-INF/views/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
spring-mybatis.xml
<?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"
xsi:schemaLocation="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
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd">
<!-- 掃描service包下所有使用註解的型別 -->
<context:component-scan base-package="ws.lyao.service"/>
<!-- 配置資料庫相關引數properties的屬性：${url} -->
<context:property-placeholder location="classpath:jdbc.properties"/>
<!-- 資料庫連線池 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="${jdbc.driver}"/>
<property name="jdbcUrl" value="${jdbc.url}"/>
<property name="user" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="maxPoolSize" value="${c3p0.maxPoolSize}"/>
<property name="minPoolSize" value="${c3p0.minPoolSize}"/>
<property name="autoCommitOnClose" value="${c3p0.autoCommitOnClose}"/>
<property name="checkoutTimeout" value="${c3p0.checkoutTimeout}"/>
<property name="acquireRetryAttempts" value="${c3p0.acquireRetryAttempts}"/>
</bean>
<!-- 配置SqlSessionFactory物件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 注入資料庫連線池 -->
<property name="dataSource" ref="dataSource"/>
<!-- 掃描model包 使用別名 -->
<property name="typeAliasesPackage" value="ws.lyao.model"/>
<!-- 掃描sql配置檔案:mapper需要的xml檔案 -->
<property name="mapperLocations" value="classpath:ws/lyao/mapper/*.xml"/>
</bean>
<!-- 配置掃描Dao介面包，動態實現Dao介面，注入到spring容器中 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- 注入sqlSessionFactory -->
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
<!-- 給出需要掃描Dao介面包 -->
<property name="basePackage" value="ws.lyao.mapper"/>
</bean>
<!-- 配置事務管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<!-- 注入資料庫連線池 -->
<property name="dataSource" ref="dataSource"/>
</bean>
<!-- 配置基於註解的宣告式事務 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
</beans>
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
version="3.1">
<display-name>ssm_demo</display-name>
<description>ssm_demo_Alpha_0.0.1</description>
<!-- 編碼過濾器 -->
<filter>
<filter-name>encodingFilter</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>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置DispatcherServlet -->
<servlet>
<servlet-name>SpringMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 配置springMVC需要載入的配置檔案-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-*.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
<async-supported>true</async-supported>
</servlet>
<servlet-mapping>
<servlet-name>SpringMVC</servlet-name>
<!-- 匹配所有請求，此處也可以配置成 *.do 形式 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
接下來先配置 mybatis 逆向工程
注意看pom.xml 最後的逆向配置，配置檔案更改為自己的 驅動 jar包
jar下載連結：https://pan.baidu.com/s/1U_eSIFiWGfNfuO9dHrUCrA 密碼：vr12
mybatis-generator.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE generatorConfiguration PUBLIC
"-//mybatis.org//DTD MyBatis Generator Configuration
1.0//EN"
"http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd"
>
<generatorConfiguration>
<!-- 制定oracle 的驅動包的路徑 千萬別放中文路徑下 -->
<!--<classPathEntry location="D:\java\ep\ojdbc14-10.2.0.2.0.jar" />
-->
<!-- 制定mybatis 的驅動包的路徑 千萬別放中文路徑下 -->
<classPathEntry location="D:\java\ep\mysql-connector-java-5.0.8-bin.jar" />
<!-- 配置資料來源和生成的程式碼所存放的位置 -->
<context id="context1">
<commentGenerator>
<!-- 是否去除自動生成的註釋 true：是 ： false:否 -->
<property name="suppressAllComments" value="true" />
</commentGenerator>
<!-- oracle -->
<!--<jdbcConnection driverClass="oracle.jdbc.OracleDriver" connectionURL="jdbc:oracle:thin:@127.0.0.1:1521:orcl" userId="sweet2" password="sweet2" />
-->
<!-- mysql -->
<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/ssm_demo?characterEncoding=utf-8" userId="root" password="sweet"/>
<!-- 所生成的實體類的位置預設資源包src -->
<javaModelGenerator targetPackage="ws.lyao.model" targetProject="src/main/java" />
<!-- 所生成的sqlMap的影射檔案的位置,預設資源包src -->
<sqlMapGenerator targetPackage="ws.lyao.mapper" targetProject="src/main/resources" />
<!-- 為哪些表生成程式碼 tableName:表名 schema:不用填寫 -->
<table schema="" tableName="user" enableCountByExample="false"
enableUpdateByExample="false" enableDeleteByExample="false"
enableSelectByExample="false" selectByExampleQueryId="false">
</table>
</context>
</generatorConfiguration>
新增逆向執行功能，和 tomcat 配置一樣 點 + 號選擇maven
雙擊執行，獲得 User.java 和 UserMapper.xml 檔案
編寫dao層 我這裡包是mapper
這裡不需要 impl ， 不需要註解，spring掃描讀取，方法名和mapper.xml 的sql 的 id 對應
public interface UserMapper {
public User selectByPrimaryKey(Integer id);
}
這裡就不寫service 層了，大家都會的，直接調dao層，
編寫測試類，執行，獲得資料
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import ws.lyao.mapper.UserMapper;
import ws.lyao.model.User;
/**
* Created by Administrator on 2018/11/17/017.
*/
// 載入spring配置檔案
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({"classpath:spring-mybatis.xml"})
public class Test {
@Autowired
private UserMapper userMapper;
@org.junit.Test
public void selectId(){
User user = userMapper.selectByPrimaryKey(1);
System.out.println(user.toString());
}
}
資料層就ok了，接下來看 index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>test</title></head>
<script>
function selectUser() {
var xmlhttp = new XMLHttpRequest();
xmlhttp.onreadystatechange = function () {
if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
document.getElementById("test").innerHTML = xmlhttp.responseText;
}
}
xmlhttp.open("POST", "user/showUser.do", true);
xmlhttp.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
xmlhttp.send("id=1");
}</script>
<body><p id="test">Hello World!</p>
<button type="button" onclick="selectUser()">onclick test</button>
</body>
</html>
編寫 controller 層
@Controller
@RequestMapping("/user")
public class UserController {
@Resource
private UserMapper userMapper;
@RequestMapping("/showUser.do")
public void selectUser(HttpServletRequest request, HttpServletResponse response) throws IOException {
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("UTF-8");
// long userId = Long.parseLong(request.getParameter("id"));
User user = this.userMapper.selectByPrimaryKey(1);
ObjectMapper mapper = new ObjectMapper();
response.getWriter().write(mapper.writeValueAsString(user));
response.getWriter().close();
}
}
然後配置tomcat 執行吧
點選測試，會獲得id = 1 的資料
獲得資料
