Spring+mybatis測試項目總結
1.項目目的
a.經過Spring+Mybatis實現經過web訪問達成mySql的操做
b.理解Spring+Mybatis的配置
c.理解maven對項目的管理
2.配置文件
a.採用maven約定結構，src/main/java、src/main/resources、src/main/testjava
b.基本springMVC+Mybatis須要用到的jarmysql
spring-web、spring-webmvc、spring-core、spring-beans、spring-context、spring-context-supportweb
spring-jdbc、spring-tx、spring-aop、spring-asm、spring-expression、spring-testspring
mybatis-3.一、mybatis-spring-1.1sql
commons-logging-1.一、commons-pool1.5.4數據庫
xalan-2.6.0（首先它是一個Java的開源類庫, 它是一個XSLT的處理包,用於將XML文檔轉爲HTML文檔,文本文件TXT,或其餘格式的XML文檔,org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter引用該jar）express
mysql-connector-java-5.1.27apache
c.從web.xml開始,引入springMVC配置文件（WEB-INF/mvc-config.xml、classpath:spring/application-config.xml）
d.從application-config.xml開始，引入Mybatis配置文件（classpath:mybatis-config.xml、mysql.properties）
e.從mybatis-config.xml開始，引入Mybatis的mapper.xml配置文件
3.項目實現
a.定義springMVC第一件事情須要聲明DispatchServlet，而後對訪問路徑進行截取
b.定義Controller，須要充分利用註解，分爲兩類，一個是經過註解自動裝配，一個是經過註解進行訪問控制標誌
c.定義Mybaits的數據庫操做類接口+mapper.xml對應結構，經過spring和mybatis結合插件實現橋接
4.項目部署
a.maven正確配置打包插件
b.可先經過jetty:run進行運行調試
5.遇到問題處理
a.首先增長maven中jetty插件時遇到盲區，（6個重要配置項目，resources資源、maven-compiler-plugin編譯插件、maven-war-plugin插件、jetty-maven-plugin插件、exec-maven-plugin插件、maven-surefire-plugin測試是否忽略失敗插件）
b.spring配置時候須要注意ref和value的區別，引用dataSource的時候報錯了，查了半天（spring配置須要熟練）
c.springMVC對經過註解的自動裝配須要進行配置的，指向頂級包名(理解spring3之後的自動裝配的配置，Bean的註解)
d.打包的時候，若是須要把java目錄中的xml文件打包須要定義resources，既然定義了resources就要多定義點，不然真實resources目錄下的xml不會被打包出去
e.jetty不能正確啓動，一般是項目部署存在問題，用maven進行項目部署一般是報依賴少了，或者依賴的包下載過程出現異常致使。api
附件：spring-mvc
pom.xml
<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>org.springframework.samples.service.service</groupId>
<artifactId>spyu-mybatis</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<properties>
<!-- Generic properties -->
<java.version>1.6</java.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<!-- Web -->
<jsp.version>2.2</jsp.version>
<jstl.version>1.2</jstl.version>
<servlet.version>2.5</servlet.version>
<!-- Spring -->
<spring-framework.version>3.1.1.RELEASE</spring-framework.version>
<!-- Logging -->
<logback.version>1.0.13</logback.version>
<slf4j.version>1.7.5</slf4j.version>
<!-- Test -->
<junit.version>4.11</junit.version>
<jettyVersion>8.1.8.v20121106</jettyVersion>
</properties>
<dependencies>
<!-- Spring MVC -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring-framework.version}</version>
</dependency>
<!-- Spring and Transactions -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${spring-framework.version}</version>
</dependency>
<!-- Spring jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${spring-framework.version}</version>
</dependency>
<!-- Other Web dependencies -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>${jstl.version}</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>${servlet.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>${jsp.version}</version>
<scope>provided</scope>
</dependency>
<!-- Logging with SLF4J & LogBack -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${slf4j.version}</version>
<scope>compile</scope>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>${logback.version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.0.1</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.0.5</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>commons-pool</groupId>
<artifactId>commons-pool</artifactId>
<version>1.5.4</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.27</version>
</dependency>
<dependency>
<groupId>xalan</groupId>
<artifactId>xalan</artifactId>
<version>2.6.0</version>
</dependency>
<!-- Test Artifacts -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring-framework.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${junit.version}</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<resources>
<resource>
<directory>src/main/java</directory>
<excludes>
<exclude>**/*.java</exclude>
<exclude>**/.svn/*</exclude>
</excludes>
</resource>
<resource>
<directory>src/main/resources</directory>
<excludes>
<exclude>**/*.java</exclude>
<exclude>**/.svn/*</exclude>
</excludes>
</resource>
</resources>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.2</version>
<configuration>
<warName>spyumybatis</warName>
</configuration>
</plugin>
<!--jetty plugin -->
<plugin>
<groupId>org.mortbay.jetty</groupId>
<artifactId>jetty-maven-plugin</artifactId>
<version>${jettyVersion}</version>
<configuration>
<scanIntervalSeconds>10</scanIntervalSeconds>
<webApp>
<contextPath>/spyumybatis</contextPath>
</webApp>
<connectors>
<connector implementation="org.eclipse.jetty.server.nio.SelectChannelConnector">
<port>9093</port>
<maxIdleTime>60000</maxIdleTime>
</connector>
</connectors>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.1</version>
<executions>
<execution>
<goals>
<goal>java</goal>
</goals>
</execution>
</executions>
<configuration>
<mainClass></mainClass>
</configuration>
</plugin>
<!-- 測試出錯不影響項目的編譯 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<configuration>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
</plugins>
</build>
</project>
web.xml
<?xml version="1.0" encoding="ISO-8859-1"?> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5"> <display-name>spyu-mybatis</display-name> <!-- DispatcherServlet 默認加載的bean文件是/WEB-INF/(servlet-name)-servlet.xml 能夠經過配置contextConfigLocation來改變加載的文件 --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/application-config.xml</param-value> </context-param> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- - Servlet that dispatches request to registered handlers (Controller implementations). --> <servlet> <servlet-name>dispatcherServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/mvc-config.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>dispatcherServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
mvc-config.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-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> <mvc:annotation-driven/> <!-- 對org.simple下全部包下的類的註解進行掃描,並自動建立bean實例和裝配bean --> <context:component-scan base-package="spyu" /> <!-- 配置視圖 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/" /> <property name="suffix" value=".jsp" /> <!-- 可爲空,方便實現自已的依據擴展名來選擇視圖解釋類的邏輯 --> <property name="viewClass"> <value>org.springframework.web.servlet.view.InternalResourceView </value> </property> </bean> </beans>
application-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:jdbc="http://www.springframework.org/schema/jdbc"
xmlns:context="http://www.springframework.org/schema/context"
default-autowire="byName"
xmlns="http://www.springframework.org/schema/beans"
xsi:schemaLocation="
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.0.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd" >
<context:annotation-config />
<!-- 載入MySql配置 文件 -->
<context:property-placeholder location="classpath:Mysql.properties" />
<!-- 配置DataSource數據源 -->
<bean id="DataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.url}" />
<property name="username" value="${jdbc.user}" />
<property name="password" value="${jdbc.password}" />
</bean>
<!-- Spring-Mybatis整合 -->
<bean id="SqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="configLocation" value="classpath:MyBatis-config.xml" />
<property name="dataSource" ref="DataSource" />
</bean>
<!-- 自動掃描mappar -->
<bean id="autoMapper" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="spyu.dao" />
</bean>
</beans>
mybatis-config.xml
<?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> <typeAliases> <typeAlias alias="User" type="spyu.mode.User" /> </typeAliases> <mappers> <mapper resource="spyu/dao/mapper/UserMapper.xml"/> </mappers> </configuration>
mysql.properties
<?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> <typeAliases> <typeAlias alias="User" type="spyu.mode.User" /> </typeAliases> <mappers> <mapper resource="spyu/dao/mapper/UserMapper.xml"/> </mappers> </configuration>
mapper.xml樣本
<?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="spyu.dao.IUser">
<select id="insertUser" parameterType="User">
insert into user(name) values (#{name})
</select>
</mapper>
後續：
三板斧：
1、MAVEN
1.modelVersion
2.groupId
3.artifactId
4.packaging
5.version
6.name
7.url
8.properties
9.dependencies
10.build
a.resources
aa.resource
b.plugins
aa.plugin
2、springMVC
1.web.xml中配置DispatchServlet（xml）和contextConfigLocation配置（xml）
2.從mvc.xml中配合自動掃描Controller，<mvc:annotation-driven />經過註解解析請求和返回參數
3.從spring.xml中能夠找到spring的bean配置以及自動掃描裝配註解bean，能夠找到properties配置文件加載，能夠找到mybatis的相關配置
4.從mybatis配置文件中能夠找到，別名和mapper.xml資源位置
5.從spring框架中能夠找到controller層的經過註解自動加載，能夠找到service層的經過註解自動加載，能夠找到mybatis相關的mapper.xml以及對應接口的配置，service層建議採用面向接口開發
3、mybatis
1.mapper.xml對應接口類的說明
mapper.xml文件中的命名空間對應該接口
接口中定義的方法須要與mapper.xml中配合的id對應
2.mapper.xml文件的說明
mapper命名空間
resultMap結果集
sql公共語句
select查詢語句
insert插入語句
3.對於mybatis來講，底層的sqlSession對象基本操做接口selectOne、selectList、selectMap、select、insert、update、delete、commit、rollback、close、clearCache、getMapper對於上層的封裝，支持select、insert、update、delete操做的各類展示方式
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相關文章
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