mybatis3+spring 3+ext js整合套路,可以小结一下.先来看mybatis 3及模型
层
1 首先是MODEL层,比如对于用户管理
先来个user.java,是个POJO
2 再搞一个persisten层,存放mybatis 3的mapper接口和文件,注意把它们都放
入一个包中,比如
public interface UserMapper {
Long getId();
User login(Map<String,Object> param);
User getUser(Map<String,Object> param);
List<User> getUserList();
List<Map<String,Object>> getUserNameList();
void insertUser(User user);
usermapper.xml:
<mapper namespace="com.user.persistence.UserMapper">
<insert id="insertUser" parameterType="User" >
INSERT INTO t_user (id,name, password, create_date)
VALUES (#{id},#{name}, #{password}, #{createDate,jdbcType=TIMESTAMP})
</insert>
3 userdao层
@Component
public class UserDao extends SqlSessionDaoSupport {
public void insertUser(User user) {
getSqlSession().insert("com.liao.user.persistence.UserMapper.insertUser", user);
}
..............
4 service层
@Service
//默认将类中的所有函数纳入事务管理.
@Transactional
public class UserService{
@Autowired
private UserMapper userMapper;
public void insertUser(User user,Map<String,Object> param) {
//新增用户
userMapper.insertUser(user);
5 controller层
@Controller
@RequestMapping("/user")
public class UserController {
@Autowired
private UserService userService;
@RequestMapping(value="/save",method=RequestMethod.POST)
public @ResponseBody Map<String,Object> saveOrUpdate(HttpServletRequest request,
HttpServletResponse response){
Map<String,Object> responseMap = new HashMap<String,Object>();
User user = new User();
Long newId = userService.getId();
user.setId(newId);
user.setCreateDate(new Date());
user.setName(name);
user.setPassword(password);
Map<String,Object> param = new HashMap<String,Object>();
param.put("user_id", newId);
userService.insertUser(user, param);
responseMap.put("method", "Create");
responseMap.put("success", "true");
responseMap.put("info", "新增成功！");
}
return responseMap;
注意,由于要返回相关的信息JSON格式给前端EXT,因此注意这里使用了
spring mvc 3中的很多技术,加个@responsebody就能生成JSON了,十分方便
,所以返回时,用一个MAP保存了要给前端显示的EXT JS信息了.
6 前端EXT JS要点:
getForm: function() {
var form = new Ext.form.FormPanel({
url:'user/save',
....................
..........
submit: function() {
if (this.form.getForm().isValid()) {
var id = this.form.getForm().findField("id").getValue();
this.form.getForm().submit({
waitTitle: '保存数据',
waitMsg: '正在保存……',
scope: this,
method: 'post',
params: '',
success: function(form, action) {
var info = action.result.info;
if (action.result.success) {
this.store.reload();
if (action.result.method == "Create") {
this.form.getForm().reset();
} else {
this.dlg.hide();
}
}
Ext.Msg.alert('信息', info);
},
failure: function(form, action) {
var info = action.result.info;
Ext.Msg.alert('提示', info);
}
});
7 mybatis3 跟spring 的配置整合
1) 搞个jdbc.properties,存放datasoruce
jdbc.driverClassName= com.mysql.jdbc.Driver
jdbc.dialect=org.hibernate.dialect.MySQLDialect
jdbc.databaseurl=jdbc:mysql://localhost:3306/springibatisextjs3
jdbc.username=root
jdbc.password=33333
2)web.xml
<!-- 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>
3)先看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:p="http://www.springframework.org/schema/p"
xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd">
<!-- Root Context: defines shared resources visible to all other web components -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"
p:location="/WEB-INF/jdbc.properties" />
<!-- 数据源配置, 使用应用中的DBCP数据库连接池 -->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<!-- Connection Info -->
<property name="driverClassName" value="${jdbc.driverClassName}" />
<property name="url" value="${jdbc.databaseurl}" />
.................
</bean>
<!-- define the SqlSessionFactory -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />
<property name="typeAliasesPackage" value="com.liao" />
</bean>
<!-- scan for mappers and let them be autowired -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.kimho" />
</bean>
<!-- enable transaction demarcation with annotations-->
<tx:annotation-driven transaction-manager="transactionManager" proxy-target-class="true" />
<!-- transaction manager, use JtaTransactionManager for global tx-->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 激活annotation功能 -->
<context:annotation-config />
<!-- 激活annotation功能 -->
<context:spring-configured/>
<!-- 不扫描带有@Controller注解的类。因为这些类已经随容器启动时，在servlet-context中扫描过一遍了 -->
<context:component-scan base-package="com.liao">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
</context:component-scan>
</beans>
4) 业务类的servlet.xml
<?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:mvc="http://www.springframework.org/schema/mvc"
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-3.1.xsd
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">
<!-- Configures the @Controller programming model 必须加上这个，不然请求controller时会出现no mapping url错误-->
<mvc:annotation-driven />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving up static resources in the ${webappRoot}/resources/ directory -->
<resources mapping="/images/**" location="/images/" />
<resources mapping="/scripts/**" location="/scripts/" />
<resources mapping="/styles/**" location="/styles/" />
<!-- Resolves views selected for rendering by @Controllers to .jsp resources in the /WEB-INF/jsp directory -->
<beans:bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<beans:property name="prefix" value="/WEB-INF/jsp/" />
<beans:property name="suffix" value=".jsp" />
</beans:bean>
<!-- 扫描业务组件,让spring不扫描带有@Service注解的类(留在root-context.xml中扫描@Service注解的类),防止事务失效 -->
<context:component-scan base-package="com.liao">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Service"/>
</context:component-scan>
</beans:beans