springmvc小案例二

最新推荐文章于 2025-08-08 22:01:10 发布

转载最新推荐文章于 2025-08-08 22:01:10 发布 · 70 阅读

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原文链接：https://my.oschina.net/chenliyong/blog/675420

文章标签：

#java #测试 #python

本文介绍了一个使用SpringMVC实现的员工信息添加功能示例，包括表单页面设计、SpringMVC配置文件设置、web.xml配置、Action类处理逻辑及实体类定义等内容。

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添加页面------------------------------

-----------------------springmvc配置文件---------------------------

<?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:mvc="http://www.springframework.org/schema/mvc"

      xsi:schemaLocation="

   http://www.springframework.org/schema/beans
   http://www.springframework.org/schema/beans/spring-beans-3.0.xsd

      http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd

      ">

    <bean name="/empAction.action" class="cn.gdpe.emp.EmpAction"></bean>

     
    <bean name="/testJsp.action" class="org.springframework.web.servlet.mvc.ParameterizableViewController">
    
    <property name="viewName" value="/forwardTestJsp.jsp"/>
    </bean>

<bean id="userActionId" class="cn.gdpe.springmvc.UserAction"></bean>

<bean class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
       <property name="mappings">
           <props>
               <prop key="/add.action">userActionId</prop>
               <prop key="/delete.action">userActionId</prop>
               <prop key="/update.action">userActionId</prop>
               <prop key="/select.action">userActionId</prop>
           </props>
       </property>
    </bean>

    
    <bean class="org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter"></bean>


    
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
       <property name="prefix" value="/userjsp/"></property>
       <property name="suffix" value=".jsp"></property>
    </bean>
</beans>

--------------------------web.xml文件---------------------------

<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>
</filter>
<filter-mapping>
  <filter-name>characterEncoding</filter-name>
  <url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
  <servlet-name>DispatcherServlet</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
             <param-name>contextConfigLocation</param-name>
             <param-value>classpath:springmvc.xml</param-value>
         </init-param>
     </servlet>
     <servlet-mapping>
         <servlet-name>DispatcherServlet</servlet-name>
         <url-pattern>*.action</url-pattern>
     </servlet-mapping>

-------------------------------action类----------------------------------

public class EmpAction extends AbstractCommandController {
public EmpAction(){
this.setCommandClass(Emp.class);
System.out.println("EmpAction()构造器");
}
/*如果不用注解的方式继承AbstractCommandController 可以直接得到实体对象，并且为你封装好了数据 this.setCommandClass(Emp.class);这句代码必须在构造器*/

/*
* object-->封装的实体类
* bindException-->封装错误
*/
@Override
protected ModelAndView handle(HttpServletRequest request,
   HttpServletResponse response, Object object, BindException bindException)
   throws Exception {
  ModelAndView modelAndView=new ModelAndView();
  request.setAttribute("message", "增加员工");
  System.out.println("handle()方法");
  Emp emp=(Emp) object;
  request.setAttribute("emp", emp);
  modelAndView.setViewName("/successAdd.jsp");
  return modelAndView;
}
/*
* 自定义类型转换器
*/

@Override
protected void initBinder(HttpServletRequest request,
   ServletRequestDataBinder binder) throws Exception {
  //参数一：将String类型转换为什么类型---》目标类型
  //参数二：自定义转换规则
  binder.registerCustomEditor(Date.class,
    new CustomDateEditor(new SimpleDateFormat("yyyy-MM-dd"), true));
}

-----------------------实体类------------------------

import java.util.Date;

public class Emp {
public String name;
public String sex;
public Date date;
public Date getDate() {
  return date;
}
public void setDate(Date date) {
  this.date = date;
}
public String getName() {
  return name;
}
public void setName(String name) {
  this.name = name;
}
public String getSex() {
  return sex;
}
public void setSex(String sex) {
  this.sex = sex;
}
@Override
public String toString() {
  return "Emp [name=" + name + ", sex=" + sex + ", date=" + date.toLocaleString() + "]";
}

}

-----------------转向页面----------------------

<body>
    ${message }
    ${requestScope.emp.name }
    ${requestScope.emp.sex }
    <fmt:formatDate value="${requestScope.emp.date }" type="date" dateStyle="default"/>
</body>

转载于:https://my.oschina.net/chenliyong/blog/675420