Spring MVC学习初篇

Spring mvc 使用配置:

 <!-- 使用MVC -->

  <servlet>

      <servlet-name>defaultDispatcher</servlet-name>

      <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

      <init-param>

          <param-name>contextConfigLocation</param-name>

          <!-- Spring XML 文件 -->

          <param-value>classpath:school-context.xml</param-value>

      </init-param>

      <load-on-startup>1</load-on-startup>

  </servlet>

  <servlet-mapping>

      <servlet-name>defaultDispatcher</servlet-name>

      <url-pattern>/*</url-pattern>

  </servlet-mapping>

<?xml version="1.0" encoding="UTF-8"?>

<beans xmlns="http://www.springframework.org/schema/beans"

 xmlns:context="http://www.springframework.org/schema/context"

 xmlns:p="http://www.springframework.org/schema/p"

 xmlns:mvc="http://www.springframework.org/schema/mvc"

 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

 xsi:schemaLocation="http://www.springframework.org/schema/beans

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

      http://www.springframework.org/schema/context

      http://www.springframework.org/schema/context/spring-context.xsd

      http://www.springframework.org/schema/mvc

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

    <bean name="/test1/helloworld" class="com.yinuo.web.controller.HelloWorldController" />

    <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">

        <property name="prefix" value="/"></property>

        <property name="suffix" value=".jsp"></property>

    </bean>

 </beans>

　　访问静态资源（js、css、img等）

<!-- 访问静态资源   -->

<mvc:resources location="/js/" mapping="/js/**"/>

<mvc:resources location="/img/" mapping="/img/**"/>

<mvc:resources location="/css/" mapping="/css/**"/>

Spring mvc 注解:

<!-- 注解扫描包 -->

    <context:component-scan base-package="cn.com.yinuo.school"></context:component-scan>

    <!-- 开启注解 -->

    <mvc:annotation-driven/>

    <!-- 上面开启注解的方式是下面开启注解方式的优化，下面的方式在3之后就过时了 -->

    <!--

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

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

     -->

@Controller
@RequestMapping("/book")

public class UserController {

    @RequestMapping(value="/addBook",method=RequestMethod.POST)

    public ModelAndView addBook(){

        String result ="this is addBook------";

        return new ModelAndView("/bookList","result",result);

    }

    @RequestMapping(value="/delBook",method=RequestMethod.GET)

    public ModelAndView delUser(){

        String result ="this is delBook------";

        return new ModelAndView("/bookList","result",result);

    }
　　 //去掉method=RequestMethod.GET /.POST表示两者皆可

    @RequestMapping("/updateBook")

    public String updateBook(){

        return "/bookList";

    }

}

Spring 参数传递：

　　单个域传递：

　　Controller方法的参数名字与表单域的名字一致，即可直接获得表单的数据

　　对象封装传递：

　　封装到一个bean里面。bean的属性名与表单域的name属性名称一致，并且bean提供getter和setter方法，在controller即可直接bean.getXxx()获得。

　　json传递　

<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<script type="text/javascript" src="../js/jquery-1.7.1.min.js"></script>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>新增书籍</title>

<script type="text/javascript">

    $(document).ready(function(){

        $("#add").click(function(){

            var bookName = $("#bookName").attr("value");

            var price =$("#price").attr("value");

            var book = {bookName:bookName,price:price};

            $.ajax({

                url:"/book/addBook",

                type:"post",

                data:book,

                success:function(bk){

                    console.info("bookName--->" + bk.bookName + "price--->" + bk.price );

                }

            });

        });

    });

</script>

</head>

<body>

    <h>新增书籍</h>

    书名<input type="text" id="bookName" name="bookName">

    价格<input type="text" id="price" name="price">

    <input type="button" id="add" value="新增">

</body>

</html>

@Controller

@RequestMapping("/book")

public class BookController {

    @RequestMapping("/addBook")

    public void addUserJson(Book book,HttpServletRequest request,HttpServletResponse response){

        String result = "{\"bookName\":\" "+ book.getBookName() +" \",\"price\":\" "+ book.getPrice()+" \"}";

        PrintWriter out = null;

        response.setContentType("application/json");

        try {

            out = response.getWriter();

            out.write(result);

        } catch (IOException e) {

            e.printStackTrace();

        }

    }

}

巴特西

Spring MVC学习初篇

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