1 首先配置web.xml
1.1配置的信息主要有:
<!-- 在web启动的时候自动加载spring的配置文件 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name><!--
将配置文件放到src下的config文件夹下后的路径配置
<param-value>classpath*:config/applocationContext.xml, ....</param-value>
--><param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
1.2 配置过滤器
<filter>
<filter-name>characterEncoding</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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
1.3 配置dispatchServlets:所有的request的请求都转到这然后根据URL路径转到相应的Controller中处理
<servlet>
<servlet-name>mvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- springmvc的配置文件的默认格式是<servlet-name>-servlet.xml 在进行参数设置后就可以随意的起名字了就像现在这样是的 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc</servlet-name>
<!-- 这样能够拦截静态文件.jpg,.css,.js等文件会被拦截,但是后面的配置中解决会有办法解决 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
2 编写相应的java文件本例比较简单只有一个实体类
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?
1. package
2.
3.
4. public class
5. private int
6.
7. private
8.
9. private int
10.
11. private
12.
13.
14. public int
15. return
16. }
17.
18.
19. public void setId(int
20. this.id = id;
21. }
22.
23.
24. public
25. return
26. }
27.
28.
29. public void
30. this.userName = userName;
31. }
32.
33.
34. public int
35. return
36. }
37.
38.
39. public void setUserAge(int
40. this.userAge = userAge;
41. }
42.
43.
44. public
45. return
46. }
47.
48.
49. public void
50. this.userAddress = userAddress;
51. }
52.
53.
54. }
package com.ouma.spring.model;
public class User {
private int id;
private String userName;
private int userAge;
private String userAddress;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public int getUserAge() {
return userAge;
}
public void setUserAge(int userAge) {
this.userAge = userAge;
}
public String getUserAddress() {
return userAddress;
}
public void setUserAddress(String userAddress) {
this.userAddress = userAddress;
}
}
3 创建映射文件和接口
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1. public interface
2. public User selectUserById(int
3.
4. public
5.
6. public void
7.
8. public void
9.
10. public void deleteUserById(int
11. }
public interface UserMapper {
public User selectUserById(int id);
public List<User> listUsers();
public void addUser(User user);
public void updateUser(User user);
public void deleteUserById(int id);
}
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1. <?xml version="1.0" encoding="UTF-8"?>
2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
3. "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
4. <mapper namespace="com.ouma.spring.mapper.UserMapper">
5. <resultMap type="User" id="resultListUser">
6. <id column="id" property="id"/>
7. <result column="userName" property="userName"/>
8. <result column="userAge" property="userAge"/>
9. <result column="userAddress" property="userAddress"/>
10. </resultMap>
11.
12. <select id="selectUserById" parameterType="int" resultType="user">
13. select * from user where id=#{id}
14. </select>
15.
16. <select id="listUsers" resultType="user">
17. select * from user
18. </select>
19.
20. <insert id="addUser" parameterType="user">
21. insert into user(id, userName, useraAge, userAddress) value(#{id},#{userName}, #{userAge}, #{userAddress})
22. </insert>
23.
24. <update id="updateUser" parameterType="user">
25. update user set userName=#{userName}, userAge=#{userAge}, userAddress=#{userAddress}
26. </update>
27.
28. <delete id="deleteUserById" parameterType="int">
29. delete from user where id=#{id}
30. </delete>
31. </mapper>
<?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.ouma.spring.mapper.UserMapper">
<resultMap type="User" id="resultListUser">
<id column="id" property="id"/>
<result column="userName" property="userName"/>
<result column="userAge" property="userAge"/>
<result column="userAddress" property="userAddress"/>
</resultMap>
<select id="selectUserById" parameterType="int" resultType="user">
select * from user where id=#{id}
</select>
<select id="listUsers" resultType="user">
select * from user
</select>
<insert id="addUser" parameterType="user">
insert into user(id, userName, useraAge, userAddress) value(#{id},#{userName}, #{userAge}, #{userAddress})
</insert>
<update id="updateUser" parameterType="user">
update user set userName=#{userName}, userAge=#{userAge}, userAddress=#{userAddress}
</update>
<delete id="deleteUserById" parameterType="int">
delete from user where id=#{id}
</delete>
</mapper>
4 配置spring的配置文件applicationContext.xml
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1. <!-- 读取配置文件 -->
2. <context:property-placeholder location="/WEB-INF/database.property"/>
3.
4. <!-- 本例采用DHCP数据源,应先将DHCP的jar包复制到工程的lib目录下 -->
5. <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
6.
7. <!-- name中的参数必须是这样的不能修改 -->
8. <property name="driverClassName" value="${drivername}" />
9. <property name="url" value="${url}" />
10. <property name="username" value="${username}" />
11. <property name="password" value="${password}" /> -->
12.
13. <property name="driverClassName" value="com.mysql.jdbc.Driver" />
14. <property name="url" value="jdbc:mysql://localhost:3306/ibatis" />
15. <property name="username" value="root" />
16. <property name="password" value="root" />
17. </bean>
18. <!-- 下面的bean就是spring来管理mybatis了-->
19. <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
20. <property name="dataSource" ref="dataSource" />
21. <property name="configLocation" value="/WEB-INF/mybatis.xml" />
22.
23. <!-- 这里可以配置mapper的映射xml文件,当然当你的映射文件和你的接口的文件一样的话就不需要了 -->
24. <!--
25. <property name="mapperLocations" vaue="路径名/*.xml">
26. -->
27.
28. </bean>
29.
30. <!-- 通过扫描的模式将该目录下的文件(就是映射文件和相关的接口) -->
31. <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
32. <property name="basePackage" value="com.ouma.spring.mapper"></property>
33. </bean>
<!-- 读取配置文件 -->
<context:property-placeholder location="/WEB-INF/database.property"/>
<!-- 本例采用DHCP数据源,应先将DHCP的jar包复制到工程的lib目录下 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<!-- name中的参数必须是这样的不能修改 -->
<!-- <property name="driverClassName" value="${drivername}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" /> -->
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/ibatis" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<!-- 下面的bean就是spring来管理mybatis了-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="/WEB-INF/mybatis.xml" />
<!-- 这里可以配置mapper的映射xml文件,当然当你的映射文件和你的接口的文件一样的话就不需要了 -->
<!--
<property name="mapperLocations" vaue="路径名/*.xml">
-->
</bean>
<!-- 通过扫描的模式将该目录下的文件(就是映射文件和相关的接口) -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.ouma.spring.mapper"></property>
</bean>
5 配置mybatis的配置文件mybatis.xml
因为我们使用了spring框架所以这里的映射文件,接口都不需要在这进行配置了全部交给spring来管理了
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1. <?xml version="1.0" encoding="UTF-8"?>
2. <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
3. <configuration>
4. <typeAliases>
5. <typeAlias type="com.ouma.spring.model.User" alias="user"/>
6. </typeAliases>
<?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 type="com.ouma.spring.model.User" alias="user"/>
</typeAliases>
6 配置springMVC的配置文件mvc.xml
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1. <?xml version="1.0" encoding="UTF-8"?>
2. <beans xmlns="http://www.springframework.org/schema/beans"
3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
4. xmlns:mvc="http://www.springframework.org/schema/mvc"
5. xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
6. http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
7. >
8.
9. <!-- <mvc:annotation-driven /> -->
10. <!-- <mvc:annotation-driven /> 是一种简写形式,完全可以手动配置替代这种简写形式,简写形式可以让初学都快速应用默认配置方案。<mvc:annotation-driven />
11. 并提供了:数据绑定支持,@NumberFormatannotation支持,@DateTimeFormat支持,@Valid支持,读写XML的支持(JAXB),读写JSON的支持(Jackson)。
12. 后面,我们处理响应ajax请求时,就使用到了对json的支持。
13. 面,对action写JUnit单元测试时,要从spring IOC容器中取DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter 两个bean,来完成测试,取的时候要知道是<mvc:annotation-driven />这一句注册的这两个bean。 -->
14. <!-- DefaultAnnotationHandlerMapping 通过注解,把一个URL映射到Controller类上 -->
15. <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
16. <!-- AnnotationMethodHandlerAdapter类,通过注解,把一个URL映射到Controller类的方法上 -->
17. <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
18. <!-- 访问jsp,路径拼接 -->
19. <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
20. <property name="prefix">
21. <value>/WEB-INF/pages/</value>
22. </property>
23. <property name="suffix">
24. <value>.jsp</value>
25. </property>
26. </bean>
27.
28. <!-- 对静态文件的访问前面我们在配置dispatchServlet的时候讲过那种拦截会将静态的文件进行拦截 这里我们就可以这样配置后使用静态文件了 -->
29. <!-- <mvc:resources mapping="/static/**" location="/WEB-INF/static/"/> -->
30. <!-- 在xml配置了这个标签后,spring可以自动去扫描base-pack下面或者子包下面的java文件,如果扫描到有@Component @Controller@Service等这些注解的类,则把这些类注册为bean -->
31. <context:component-scan base-package="com.ouma.spring.controller" />
32. </beans>
33.
34. </configuration>
<?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-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<!-- <mvc:annotation-driven /> -->
<!-- <mvc:annotation-driven /> 是一种简写形式,完全可以手动配置替代这种简写形式,简写形式可以让初学都快速应用默认配置方案。<mvc:annotation-driven /> 会自动注册DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter 两个bean,是spring MVC为@Controllers分发请求所必须的。
并提供了:数据绑定支持,@NumberFormatannotation支持,@DateTimeFormat支持,@Valid支持,读写XML的支持(JAXB),读写JSON的支持(Jackson)。
后面,我们处理响应ajax请求时,就使用到了对json的支持。
面,对action写JUnit单元测试时,要从spring IOC容器中取DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter 两个bean,来完成测试,取的时候要知道是<mvc:annotation-driven />这一句注册的这两个bean。 -->
<!-- DefaultAnnotationHandlerMapping 通过注解,把一个URL映射到Controller类上 -->
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
<!-- AnnotationMethodHandlerAdapter类,通过注解,把一个URL映射到Controller类的方法上 -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<!-- 访问jsp,路径拼接 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<!-- 对静态文件的访问前面我们在配置dispatchServlet的时候讲过那种拦截会将静态的文件进行拦截 这里我们就可以这样配置后使用静态文件了 -->
<!-- <mvc:resources mapping="/static/**" location="/WEB-INF/static/"/> -->
<!-- 在xml配置了这个标签后,spring可以自动去扫描base-pack下面或者子包下面的java文件,如果扫描到有@Component @Controller@Service等这些注解的类,则把这些类注册为bean -->
<context:component-scan base-package="com.ouma.spring.controller" />
</beans>
</configuration>
7 编写controller类
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?
1. @Controller
2. @RequestMapping("/user")
3. public class UserController {
4.
5.
6. @Autowired
7. UserMapper userMapper;
8.
9. @RequestMapping("/list")
10. public ModelAndView listall(HttpServletRequest request,HttpServletResponse response){
11. List<User> listUser = userMapper.listUsers();
12. ModelAndView mav=new
13. mav.addObject("listUser", listUser);
14. return mav;
15.
16. }
17. }
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
UserMapper userMapper;
@RequestMapping("/list")
public ModelAndView listall(HttpServletRequest request,HttpServletResponse response){
List<User> listUser = userMapper.listUsers();
ModelAndView mav=new ModelAndView("listUser");
mav.addObject("listUser", listUser);
return mav;
}
}
8 在地址栏中输入http://localhost:8080/springMVC/user/list就可以访问list.jsp了
1 首先配置web.xml
1.1配置的信息主要有:
<!-- 在web启动的时候自动加载spring的配置文件 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name><!--
将配置文件放到src下的config文件夹下后的路径配置
<param-value>classpath*:config/applocationContext.xml, ....</param-value>
--><param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
1.2 配置过滤器
<filter>
<filter-name>characterEncoding</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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncoding</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
1.3 配置dispatchServlets:所有的request的请求都转到这然后根据URL路径转到相应的Controller中处理
<servlet>
<servlet-name>mvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><!-- springmvc的配置文件的默认格式是<servlet-name>-servlet.xml 在进行参数设置后就可以随意的起名字了就像现在这样是的 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc</servlet-name>
<!-- 这样能够拦截静态文件.jpg,.css,.js等文件会被拦截,但是后面的配置中解决会有办法解决 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
2 编写相应的java文件本例比较简单只有一个实体类
[java] view plain copy
print
?
1. package
2.
3.
4. public class
5. private int
6.
7. private
8.
9. private int
10.
11. private
12.
13.
14. public int
15. return
16. }
17.
18.
19. public void setId(int
20. this.id = id;
21. }
22.
23.
24. public
25. return
26. }
27.
28.
29. public void
30. this.userName = userName;
31. }
32.
33.
34. public int
35. return
36. }
37.
38.
39. public void setUserAge(int
40. this.userAge = userAge;
41. }
42.
43.
44. public
45. return
46. }
47.
48.
49. public void
50. this.userAddress = userAddress;
51. }
52.
53.
54. }
package com.ouma.spring.model;
public class User {
private int id;
private String userName;
private int userAge;
private String userAddress;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public int getUserAge() {
return userAge;
}
public void setUserAge(int userAge) {
this.userAge = userAge;
}
public String getUserAddress() {
return userAddress;
}
public void setUserAddress(String userAddress) {
this.userAddress = userAddress;
}
}
3 创建映射文件和接口
[java] view plain copy
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?
1. public interface
2. public User selectUserById(int
3.
4. public
5.
6. public void
7.
8. public void
9.
10. public void deleteUserById(int
11. }
public interface UserMapper {
public User selectUserById(int id);
public List<User> listUsers();
public void addUser(User user);
public void updateUser(User user);
public void deleteUserById(int id);
}
[html] view plain copy
print
?
1. <?xml version="1.0" encoding="UTF-8"?>
2. <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
3. "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
4. <mapper namespace="com.ouma.spring.mapper.UserMapper">
5. <resultMap type="User" id="resultListUser">
6. <id column="id" property="id"/>
7. <result column="userName" property="userName"/>
8. <result column="userAge" property="userAge"/>
9. <result column="userAddress" property="userAddress"/>
10. </resultMap>
11.
12. <select id="selectUserById" parameterType="int" resultType="user">
13. select * from user where id=#{id}
14. </select>
15.
16. <select id="listUsers" resultType="user">
17. select * from user
18. </select>
19.
20. <insert id="addUser" parameterType="user">
21. insert into user(id, userName, useraAge, userAddress) value(#{id},#{userName}, #{userAge}, #{userAddress})
22. </insert>
23.
24. <update id="updateUser" parameterType="user">
25. update user set userName=#{userName}, userAge=#{userAge}, userAddress=#{userAddress}
26. </update>
27.
28. <delete id="deleteUserById" parameterType="int">
29. delete from user where id=#{id}
30. </delete>
31. </mapper>
<?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.ouma.spring.mapper.UserMapper">
<resultMap type="User" id="resultListUser">
<id column="id" property="id"/>
<result column="userName" property="userName"/>
<result column="userAge" property="userAge"/>
<result column="userAddress" property="userAddress"/>
</resultMap>
<select id="selectUserById" parameterType="int" resultType="user">
select * from user where id=#{id}
</select>
<select id="listUsers" resultType="user">
select * from user
</select>
<insert id="addUser" parameterType="user">
insert into user(id, userName, useraAge, userAddress) value(#{id},#{userName}, #{userAge}, #{userAddress})
</insert>
<update id="updateUser" parameterType="user">
update user set userName=#{userName}, userAge=#{userAge}, userAddress=#{userAddress}
</update>
<delete id="deleteUserById" parameterType="int">
delete from user where id=#{id}
</delete>
</mapper>
4 配置spring的配置文件applicationContext.xml
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?
1. <!-- 读取配置文件 -->
2. <context:property-placeholder location="/WEB-INF/database.property"/>
3.
4. <!-- 本例采用DHCP数据源,应先将DHCP的jar包复制到工程的lib目录下 -->
5. <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
6.
7. <!-- name中的参数必须是这样的不能修改 -->
8. <property name="driverClassName" value="${drivername}" />
9. <property name="url" value="${url}" />
10. <property name="username" value="${username}" />
11. <property name="password" value="${password}" /> -->
12.
13. <property name="driverClassName" value="com.mysql.jdbc.Driver" />
14. <property name="url" value="jdbc:mysql://localhost:3306/ibatis" />
15. <property name="username" value="root" />
16. <property name="password" value="root" />
17. </bean>
18. <!-- 下面的bean就是spring来管理mybatis了-->
19. <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
20. <property name="dataSource" ref="dataSource" />
21. <property name="configLocation" value="/WEB-INF/mybatis.xml" />
22.
23. <!-- 这里可以配置mapper的映射xml文件,当然当你的映射文件和你的接口的文件一样的话就不需要了 -->
24. <!--
25. <property name="mapperLocations" vaue="路径名/*.xml">
26. -->
27.
28. </bean>
29.
30. <!-- 通过扫描的模式将该目录下的文件(就是映射文件和相关的接口) -->
31. <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
32. <property name="basePackage" value="com.ouma.spring.mapper"></property>
33. </bean>
<!-- 读取配置文件 -->
<context:property-placeholder location="/WEB-INF/database.property"/>
<!-- 本例采用DHCP数据源,应先将DHCP的jar包复制到工程的lib目录下 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<!-- name中的参数必须是这样的不能修改 -->
<!-- <property name="driverClassName" value="${drivername}" />
<property name="url" value="${url}" />
<property name="username" value="${username}" />
<property name="password" value="${password}" /> -->
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost:3306/ibatis" />
<property name="username" value="root" />
<property name="password" value="root" />
</bean>
<!-- 下面的bean就是spring来管理mybatis了-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="configLocation" value="/WEB-INF/mybatis.xml" />
<!-- 这里可以配置mapper的映射xml文件,当然当你的映射文件和你的接口的文件一样的话就不需要了 -->
<!--
<property name="mapperLocations" vaue="路径名/*.xml">
-->
</bean>
<!-- 通过扫描的模式将该目录下的文件(就是映射文件和相关的接口) -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.ouma.spring.mapper"></property>
</bean>
5 配置mybatis的配置文件mybatis.xml
因为我们使用了spring框架所以这里的映射文件,接口都不需要在这进行配置了全部交给spring来管理了
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1. <?xml version="1.0" encoding="UTF-8"?>
2. <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd">
3. <configuration>
4. <typeAliases>
5. <typeAlias type="com.ouma.spring.model.User" alias="user"/>
6. </typeAliases>
<?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 type="com.ouma.spring.model.User" alias="user"/>
</typeAliases>
6 配置springMVC的配置文件mvc.xml
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1. <?xml version="1.0" encoding="UTF-8"?>
2. <beans xmlns="http://www.springframework.org/schema/beans"
3. xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
4. xmlns:mvc="http://www.springframework.org/schema/mvc"
5. xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
6. http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
7. >
8.
9. <!-- <mvc:annotation-driven /> -->
10. <!-- <mvc:annotation-driven /> 是一种简写形式,完全可以手动配置替代这种简写形式,简写形式可以让初学都快速应用默认配置方案。<mvc:annotation-driven />
11. 并提供了:数据绑定支持,@NumberFormatannotation支持,@DateTimeFormat支持,@Valid支持,读写XML的支持(JAXB),读写JSON的支持(Jackson)。
12. 后面,我们处理响应ajax请求时,就使用到了对json的支持。
13. 面,对action写JUnit单元测试时,要从spring IOC容器中取DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter 两个bean,来完成测试,取的时候要知道是<mvc:annotation-driven />这一句注册的这两个bean。 -->
14. <!-- DefaultAnnotationHandlerMapping 通过注解,把一个URL映射到Controller类上 -->
15. <bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
16. <!-- AnnotationMethodHandlerAdapter类,通过注解,把一个URL映射到Controller类的方法上 -->
17. <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
18. <!-- 访问jsp,路径拼接 -->
19. <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
20. <property name="prefix">
21. <value>/WEB-INF/pages/</value>
22. </property>
23. <property name="suffix">
24. <value>.jsp</value>
25. </property>
26. </bean>
27.
28. <!-- 对静态文件的访问前面我们在配置dispatchServlet的时候讲过那种拦截会将静态的文件进行拦截 这里我们就可以这样配置后使用静态文件了 -->
29. <!-- <mvc:resources mapping="/static/**" location="/WEB-INF/static/"/> -->
30. <!-- 在xml配置了这个标签后,spring可以自动去扫描base-pack下面或者子包下面的java文件,如果扫描到有@Component @Controller@Service等这些注解的类,则把这些类注册为bean -->
31. <context:component-scan base-package="com.ouma.spring.controller" />
32. </beans>
33.
34. </configuration>
<?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-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd">
<!-- <mvc:annotation-driven /> -->
<!-- <mvc:annotation-driven /> 是一种简写形式,完全可以手动配置替代这种简写形式,简写形式可以让初学都快速应用默认配置方案。<mvc:annotation-driven /> 会自动注册DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter 两个bean,是spring MVC为@Controllers分发请求所必须的。
并提供了:数据绑定支持,@NumberFormatannotation支持,@DateTimeFormat支持,@Valid支持,读写XML的支持(JAXB),读写JSON的支持(Jackson)。
后面,我们处理响应ajax请求时,就使用到了对json的支持。
面,对action写JUnit单元测试时,要从spring IOC容器中取DefaultAnnotationHandlerMapping与AnnotationMethodHandlerAdapter 两个bean,来完成测试,取的时候要知道是<mvc:annotation-driven />这一句注册的这两个bean。 -->
<!-- DefaultAnnotationHandlerMapping 通过注解,把一个URL映射到Controller类上 -->
<bean class="org.springframework.web.servlet.mvc.annotation.DefaultAnnotationHandlerMapping" />
<!-- AnnotationMethodHandlerAdapter类,通过注解,把一个URL映射到Controller类的方法上 -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<!-- 访问jsp,路径拼接 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/pages/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
<!-- 对静态文件的访问前面我们在配置dispatchServlet的时候讲过那种拦截会将静态的文件进行拦截 这里我们就可以这样配置后使用静态文件了 -->
<!-- <mvc:resources mapping="/static/**" location="/WEB-INF/static/"/> -->
<!-- 在xml配置了这个标签后,spring可以自动去扫描base-pack下面或者子包下面的java文件,如果扫描到有@Component @Controller@Service等这些注解的类,则把这些类注册为bean -->
<context:component-scan base-package="com.ouma.spring.controller" />
</beans>
</configuration>
7 编写controller类
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1. @Controller
2. @RequestMapping("/user")
3. public class UserController {
4.
5.
6. @Autowired
7. UserMapper userMapper;
8.
9. @RequestMapping("/list")
10. public ModelAndView listall(HttpServletRequest request,HttpServletResponse response){
11. List<User> listUser = userMapper.listUsers();
12. ModelAndView mav=new
13. mav.addObject("listUser", listUser);
14. return mav;
15.
16. }
17. }
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
UserMapper userMapper;
@RequestMapping("/list")
public ModelAndView listall(HttpServletRequest request,HttpServletResponse response){
List<User> listUser = userMapper.listUsers();
ModelAndView mav=new ModelAndView("listUser");
mav.addObject("listUser", listUser);
return mav;
}
}