spring mvc和struts2开发实例1

1. 开发功能概述

    分别使用spring mvc和struts2实现单表的增，删，改、查，并实现验证功能。

2. 数据库设计

    使用mysql数据库，建立test数据库，建立customer表。表结构如下图所示：

 

3. spring mvc实现

   (1)spring.xml配置

<!--数据源-->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName">
        <value>com.mysql.jdbc.Driver</value>
    </property>
    <property name="url">
        <value>jdbc:mysql://localhost:3306/test</value>
    </property>
    <property name="username">
        <value>root</value>
    </property>
    <property name="password">
        <value>780502</value>
    </property>
</bean>

<bean id="jdbcTemplate"
class="org.springframework.jdbc.core.JdbcTemplate">
    <property name="dataSource">
        <ref bean="dataSource" />
    </property>
</bean>

<bean id="localeResolver"
class="org.springframework.web.servlet.i18n.AcceptHeaderLocaleResolver">
</bean>

<!-- 参数配置多个处理请 -->
<bean id="paraMethodResolver"
 class="org.springframework.web.servlet.mvc.
multiaction.ParameterMethodNameResolver">
    <property name="paramName">
        <value>action</value>
    </property>
    <property name="defaultMethodName">
        <value>list</value>
    </property>
</bean>

<!--配置控制器的映射-->
<bean id="urlMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
    <property name="mappings">
        <props>
        <prop key="customer.do">customerAction</prop>
    </props>
   </property>
</bean>

<!--配置视图-->
<bean id="viewResolver"
class="org.springframework.web.servlet.
view.InternalResourceViewResolver">
    <property name="prefix">
        <value>/</value>
    </property>
    <property name="suffix">
        <value>.jsp</value>
    </property>
</bean>

<!--客户处理-->
<bean id="customerAction"
        class="com.wangsy.spring.action.CustomerAction">
    <property name="insert_view">
        <value>customerInsert</value>
    </property>
    <property name="list_view">
         <value>customerList</value>
    </property>
    <property name="update_view">
        <value>customerUpdate</value>
    </property>
    <property name="service" ref="customerService" />
    <property name="methodNameResolver">
        <ref bean="paraMethodResolver" />
    </property>
</bean>

<bean id="customerService"
class="com.wangsy.spring.service.impl.CustomerServiceImpl">
    <property name="dao" ref="customerDao" />
</bean>

<bean id="customerDao"
        class="com.wangsy.spring.dao.impl.CustomerDaoImpl">
    <property name="jdbcTemplate" ref="jdbcTemplate" />
</bean>

   (2)编写实现类，有CustomerAction、CustomerServiceImpl、CustomerDaoImpl、Customer等。其中CustomerAction继承MultiActionController类，可以实现一个类处理多个请求。部分代码如下：

/**
 *
 * 功能：验证绑定
 * 方法名:bindObject
 * @param
 * @return BindException
 */
protected BindException bindObject(
        HttpServletRequest  request,
          Object command, Validator validator)
          throws Exception {
      ServletRequestDataBinder binder
           = createBinder(request, command);
      binder.bind(request);
      BindException errors
        = new BindException(command,
              getCommandName(command));

      if (validator.supports(command.getClass())) {
          ValidationUtils.invokeValidator(validator,
           command, errors);
      }

      return errors;
  }

/*
 * 功能：增加客户信息
 * 方法名:add
 * @param
 * @return ModelAndView
 */
public ModelAndView add(HttpServletRequest request,
        HttpServletResponse response,
                Customer command)throws Exception {
    BindException errorModule
            = bindObject(request, command,
            new CustomerValidator());
    if (errorModule.hasErrors()){
        Map map = errorModule.getModel();
        List<Customer> customerList =
                      service.getAllCustomers();
        map.put("customerList", customerList);
        return new ModelAndView
                     (this.getList_view(),map);
    }else{
        service.insertCustomer(command);
        return list(request,response);
    }
}

    使用Customer类封装请求参数，bindObject实现数据绑定和验证，类似struts1的ActionForm。服务层和数据层代码见附件。

   (3)页面文件：index.jsp、customerList.jsp、customerUpdate.jsp。

   使用<font color="red"><form:errors path="custName" cssClass="fieldError" /></font>显示验证错误信息。