Spring2.5MVC应用实例
首先在web.xml中配置spring相关servlet和listener。
<!-- Spring 服务层的配置文件 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml,classpath:dataAccessContext-jdbc.xml</param-value>
</context-param>
<!-- Spring 容器启动监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Spring MVC 的Servlet，它将加载WEB-INF/annomvc-servlet.xml 的
配置文件，以启动Spring MVC模块-->
<servlet>
<servlet-name>greatwall</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>greatwall</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
配置里面主要涉及三个xml配置文件，分别对应的代码如下：
applicationContext.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"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<context:annotation-config />
<context:component-scan base-package="com.example" />
</beans>
dataAccessContext-jdbc.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-2.5.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="jdbc:mysql://localhost/greatwall" />
<property name="username" value="root" />
<property name="password" value="sa" />
</bean>
<!-- ibatis sqlMapClient config -->
<bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean">
<property name="configLocation">
<value>classpath:sql\sql-map-config.xml</value>
</property>
<property name="dataSource">
<ref bean="dataSource"/>
</property>
</bean>
</beans>
greatwall-servlet.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:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<context:component-scan base-package="com.example" />
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/app/" p:suffix=".jsp" />
</beans>
其中，dataAccessContext-jdbc.xml这个文件是为了ibatis需要的，如果你使用的hibernate或者jdbc的话，可以先将里面的bean全部去掉，保留一个空的beans节点既可。
实例的java类如下：
package com.example.controller;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONObject;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.example.domain.Customer;
import com.example.exception.CustomerException;
import com.example.service.ICustomerService;
import com.example.util.ListRange;
@Controller
public class CustomerController {
@Autowired(required = false)
@Qualifier("customerService")
private ICustomerService customerService = null;
@RequestMapping("/listCustomer.do")
public void list(HttpServletResponse response,int start,int limit) {
try {
ListRange<Customer> listRange = new ListRange<Customer>();
listRange.setLimit(limit);
listRange.setStart(start);
customerService.queryRecords(listRange);
response.setContentType("text/javascript;charset=UTF-8");
try {
PrintWriter out = response.getWriter();
out.write(JSONObject.fromObject(listRange).toString());
} catch (IOException e) {
}
} catch (CustomerException e) {
e.printStackTrace();
}
}
@RequestMapping("/deleteCustomer.do")
public void delete(HttpServletResponse response,String ids) {
ListRange<Customer> result = new ListRange<Customer>();
result.setSuccess(true);
try {
customerService.delete(ids);
} catch (CustomerException e) {
e.printStackTrace();
result.setSuccess(false);
}
response.setContentType("text/javascript;charset=UTF-8");
try {
PrintWriter out = response.getWriter();
out.write(JSONObject.fromObject(result).toString());
} catch (IOException e) {
}
}
@RequestMapping("/updateCustomer.do")
public void update(HttpServletResponse response,Customer customer) {
System.out.println(customer);
ListRange<Customer> result = new ListRange<Customer>();
result.setSuccess(true);
try {
customerService.update(customer);
} catch (CustomerException e) {
e.printStackTrace();
}
response.setContentType("text/javascript;charset=UTF-8");
try {
PrintWriter out = response.getWriter();
out.write(JSONObject.fromObject(result).toString());
} catch (IOException e) {
}
}
@RequestMapping("/selectCustomer.do")
public void select() {
}
@RequestMapping("/insertCustomer.do")
public void insert(HttpServletResponse response,Customer customer) {
System.out.println(customer);
ListRange<Customer> result = new ListRange<Customer>();
result.setSuccess(true);
try {
customerService.insert(customer);
} catch (CustomerException e) {
e.printStackTrace();
}
response.setContentType("text/javascript;charset=UTF-8");
try {
PrintWriter out = response.getWriter();
out.write(JSONObject.fromObject(result).toString());
} catch (IOException e) {
}
}
}
Spring会自动的将http提交的参数对应到javabean上，这里使用了一个ICustomerService的注入操作，还有一些javabean，可以直接去掉，保留一个最简单的版本进行测试。