STS建立springmvc +mybatis项目
一 项目建立css
选择 Spring Legacy Project next 选择spring mvc projecthtml
建立完成项目项目就能够在浏览器上访问（http://localhost:18080/web/）java
二 项目结构mysql
咱们来看看 web.xml里面的内容web
<?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"> <!-- The definition of the Root Spring Container shared by all Servlets and Filters --> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/root-context.xml</param-value> </context-param> <!-- Creates the Spring Container shared by all Servlets and Filters --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!-- Processes application requests --> <servlet> <servlet-name>appServlet</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/spring/appServlet/servlet-context.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>appServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
上面的配置文件加载了两个配置文件spring
servlet-context.xml root-context.xmlsql
maven 项目建议咱们将项目中的相关配置文件放到 src\java\resource下面apache
这里咱们改变下项目结构json
这样 web.xml中加载配置文件的路径变成从classPath加载api
classPath:root-context.xml classPath:servlet-context.xml
模板建立的项目使用的Spring 是 3.1.1.RELEASE版本 咱们换下高点的版本(4.1.4.RELEASE)
servlet-context.xml 配置文件
<?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">
<!-- DispatcherServlet Context: defines this servlet's request-processing infrastructure -->
<!-- Enables the Spring MVC @Controller programming model -->
<annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources directory -->
<resources mapping="/resources/**" location="/resources/" />
<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/views directory -->
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/views/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<context:component-scan base-package="com.test.web" />
</beans:beans>
<!------------------------------------------------------------------->
这里的 <resources mapping="/resources/**" location="/resources/" />
resource 配置了静态资源的影视 匹配resource 的请求 会映射到 webapp下面的resource 文件
<context:component-scan base-package="com.test.web" />
扫描com.test.web下面的注解
org.springframework.web.servlet.view.InternalResourceViewResolver
配置了请求返回的页面返回到 webapp/WEB-INF/views下面对应的JSP 文件
最上面的XML头文件是spring命名空间 等下我会改下这个头文件
项目怎么启动的
咱们在浏览器输入http://localhost:18080/web/ 就能访问到首页了
这里咱们要注意到两个配置
web.xml 中servlet的配置是这样的
<servlet-mapping> <servlet-name>appServlet</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping>
这表示项目会拦截一切请求
src/main/java下面有一个controller拦截了 "/"请求
这样一个基本的spring +springmvc 项目咱们就搭起来了
三 加入mybatis
上面咱们只是实现了拦截请求 ，咱们如今加入数据访问层
这里咱们将mybatis 教由spring 管理
pom.xml 要引入相关包
<!--mybatis-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<!--mybatis整合-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- 高性能链接池 配置数据源-->
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
<version>2.4.7</version>
</dependency>
<!--MySQL链接工具-->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
在 root-context.xml 加入相关配置实现相关功能
1 引入 数据源配置文件
2 配置数据源
3 配置 自动扫描mybatis XML映射文件 dao接口类 事物代理
接下来咱们用mybatis自动生成工具生成 相关文件
<?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 >
<classPathEntry location="D:\Util\maven\maven-dependcies\mysql\mysql-connector-java\5.1.35\mysql-connector-java-5.1.35.jar"/>
<context id="context1" >
<jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://127.0.0.1:3306/shop" userId="root" password="root" />
<javaModelGenerator targetPackage="com.test.enty" targetProject="web" />
<sqlMapGenerator targetPackage="com.test.dao.mysql" targetProject="web" />
<javaClientGenerator targetPackage="com.test.dao" targetProject="web" type="XMLMAPPER" />
<table schema="shop" tableName="course_info" domainObjectName="coureInfo" enableCountByExample="false" enableDeleteByExample="false"
enableSelectByExample="false" enableUpdateByExample="false"
selectByExampleQueryId="false">
</table>
</context>
</generatorConfiguration>
怎样使用mybatis自动生成插件请参考http://www.javashuo.com/article/p-uovhscuq-ep.html
如今我么在 HomeController测试下mybatis
public class HomeController {
@Autowired
private testMapper mapper;
@Autowired
private coureInfoMapper courseMapper;
private static final Logger logger = LoggerFactory.getLogger(HomeController.class);
/**
* Simply selects the home view to render by returning its name.
*/
@RequestMapping(value = "/", method = RequestMethod.GET)
public String home(Locale locale, Model model) {
logger.info("Welcome home! The client locale is {}.", locale);
coureInfo t = courseMapper.selectByPrimaryKey(1);
System.out.println(t.getCname());
return "home";
}
}
在控制台中打印出结果
四 返回json 数据
Spring MVC 要返回json数据的话 须要在方法上加上 @ResponseBody注解
@RequestMapping(value = "/", method = RequestMethod.GET)
@ResponseBody
public Map<String,Object> home(Locale locale, Model model) {
logger.info("Welcome home! The client locale is {}.", locale);
coureInfo t = courseMapper.selectByPrimaryKey(1);
Map<String,Object> map = new HashMap<String,Object>();
map.put("data", t);
System.out.println(t.getCname());
return map;
}
固然要在pom.xml中加入相关json解析包
如今附上相关配置文件
jdbc.properties
#application all config #jdbc c3p0 jdbc.driver = com.mysql.jdbc.Driver jdbc.url = jdbc:mysql://localhost:3306/shop?useUnicode=true&characterEncoding=utf-8 jdbc.username = root jdbc.password = root
root-context.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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd ">
<context:component-scan base-package="com.test.*" />
<!-- spring后处理器 将后面能够经过${name}的方式引用property中的健 -->
<bean
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<!-- 若是有多个属性文件，一并列在这里 -->
<value>classPath:jdbc.properties</value>
<!-- <value>xxx.properties</value> -->
</list>
</property>
</bean>
<!-- 数据源-->
<bean id = "dataSource" class="com.zaxxer.hikari.HikariDataSource" destroy-method="close">
<property name="driverClassName" value="${jdbc.driver}" />
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="username" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="maximumPoolSize" value="100" />
<property name="minimumIdle" value="10" />
<property name="connectionTestQuery" value="select 1" />
<property name="dataSourceProperties">
<props>
<prop key="cachePrepStmts">true</prop>
<prop key="prepStmtCacheSize">250</prop>
<prop key="prepStmtCacheSqlLimit">2048</prop>
<prop key="useServerPrepStmts">true</prop>
</props>
</property>
</bean>
<!-- spring和MyBatis完美整合，不须要mybatis的配置映射文件 自动扫描mapping.xml文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<!-- 错误写法 这里路径分割符用点号是错的 前面要加上classpath -->
<property name="mapperLocations" value="classpath*:com/test/dao/mysql/*.xml"></property>
</bean>
<!-- DAO接口所在包名，Spring会自动查找其下的类 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.test.dao" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />
<!-- 配置 Annotation 驱动，定义事务 启用事务注解 这种方式需在事务方法使用注解-->
<mvc:annotation-driven>
<!-- 返回json数据，@response使用 -->
<mvc:message-converters register-defaults="true">
<bean
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
<value>application/json;charset=UTF-8</value>
</list>
</property>
</bean>
</mvc:message-converters>
</mvc:annotation-driven>
</beans>
servlet-context.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:aop="http://www.springframework.org/schema/aop"
xmlns:tx="http://www.springframework.org/schema/tx"
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/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
">
<!-- DispatcherServlet Context: defines this servlet's request-processing
infrastructure -->
<!-- Enables the Spring MVC @Controller programming model -->
<!-- Handles HTTP GET requests for /resources/** by efficiently serving
up static resources in the ${webappRoot}/resources directory -->
<!-- Resolves views selected for rendering by @Controllers to .jsp resources
in the /WEB-INF/views directory -->
<aop:aspectj-autoproxy />
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- value 前面都加上访问路径 http://localhost:18080/mybatis/+webapp -->
<property name="prefix" value="/WEB-INF/views/" />
<!-- <property name="prefix" value="/pages/" /> -->
<property name="suffix" value=".jsp" />
</bean>
<mvc:annotation-driven />
<mvc:resources location="/WEB-INF/resources/js/" mapping="/js/**"></mvc:resources>
<mvc:resources location="/WEB-INF/resources/" mapping="/resource/**"></mvc:resources>
<mvc:resources location="/WEB-INF/resources/img/" mapping="/img/**"></mvc:resources>
<mvc:resources location="/WEB-INF/resources/css/" mapping="/css/**"></mvc:resources>
<mvc:resources location="/pages/" mapping="/pages/**"></mvc:resources>
<!-- 在servletContext.xml中只须要扫描全部带@Controller注解的类， 在applicationContext中能够扫描全部其余带有注解的类（也能够过滤掉带@Controller注解的类） -->
<context:component-scan base-package="com.test.web*" />
</beans>
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.test</groupId>
<artifactId>web</artifactId>
<name>web</name>
<packaging>war</packaging>
<version>1.0.0-BUILD-SNAPSHOT</version>
<properties>
<java-version>1.7</java-version>
<org.springframework-version>4.1.4.RELEASE</org.springframework-version>
<org.aspectj-version>1.6.10</org.aspectj-version>
<org.slf4j-version>1.6.6</org.slf4j-version>
<mybatis.version>3.2.2</mybatis.version>
<jackson.version>2.5.0</jackson.version>
</properties>
<dependencies>
<!-- Spring -->
<!-- Spring -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework-version}</version>
<exclusions>
<!-- Exclude Commons Logging in favor of SLF4j -->
<exclusion>
<groupId>commons-logging</groupId>
<artifactId>commons-logging</artifactId>
</exclusion>
</exclusions>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework-version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context-support -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${org.springframework-version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5-pre10</version>
</dependency>
<dependency>
<!-- 高性能链接池 -->
<groupId>com.zaxxer</groupId>
<artifactId>HikariCP</artifactId>
<version>2.4.7</version>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.34</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${org.aspectj-version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${org.aspectj-version}</version>
</dependency>
<!-- Logging -->
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>${org.slf4j-version}</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>${org.slf4j-version}</version>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-core</artifactId>
<version>${jackson.version}</version>
</dependency>
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>${jackson.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/dom4j/dom4j -->
<dependency>
<groupId>dom4j</groupId>
<artifactId>dom4j</artifactId>
<version>1.6.1</version>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.15</version>
<exclusions>
<exclusion>
<groupId>javax.mail</groupId>
<artifactId>mail</artifactId>
</exclusion>
<exclusion>
<groupId>javax.jms</groupId>
<artifactId>jms</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jdmk</groupId>
<artifactId>jmxtools</artifactId>
</exclusion>
<exclusion>
<groupId>com.sun.jmx</groupId>
<artifactId>jmxri</artifactId>
</exclusion>
</exclusions>
<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>
<!-- Test -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.7</version>
<scope>test</scope>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<artifactId>maven-eclipse-plugin</artifactId>
<version>2.9</version>
<configuration>
<additionalProjectnatures>
<projectnature>org.springframework.ide.eclipse.core.springnature</projectnature>
</additionalProjectnatures>
<additionalBuildcommands>
<buildcommand>org.springframework.ide.eclipse.core.springbuilder</buildcommand>
</additionalBuildcommands>
<downloadSources>true</downloadSources>
<downloadJavadocs>true</downloadJavadocs>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.5.1</version>
<configuration>
<source>1.6</source>
<target>1.6</target>
<compilerArgument>-Xlint:all</compilerArgument>
<showWarnings>true</showWarnings>
<showDeprecation>true</showDeprecation>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<version>1.2.1</version>
<configuration>
<mainClass>org.test.int1.Main</mainClass>
</configuration>
</plugin>
</plugins>
</build>
</project>
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