1. Eclipse 創建Maven Project,選擇:maven-archetype-webapp。
2.Pom文件內容如下:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.zf.ssh.test</groupId>
<artifactId>SSHTest</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>SSHTest Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-asm</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<!-- end spring 核心依賴包 -->
<!-- start spring mvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- START SERVLET -->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>SSHTest</finalName>
</build>
</project>
添加之後Maven庫內容如下(csdn圖片有問題,之後上傳):
src目錄結構如下(csdn圖片有問題,之後上傳):
4.index.jsp文件內容如下。邏輯:獲取helloworld參數信息,並顯示出來。
<html>
<head><title>HELLO WORLD</title></head>
<% String str = (String)request.getAttribute("helloworld"); %>
<body>
<font size='22'><%=str%></font>
</body>
</html><html>
<head><title>HELLO WORLD</title></head>
<% String str = (String)request.getAttribute("helloworld"); %>
<body>
<font size='22'><%=str%></font>
</body>
</html>
5.創建類HelloWorldController,繼承spring的Controller接口,其處理邏輯就是,將自己的helloworld屬性,附在helloworld參數上。在上面的jsp裏面獲取了這個helloworld參數內容,並顯示了。
package com.zf.ssh.test;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
public class HelloWorldController implements org.springframework.web.servlet.mvc.Controller
{
private String helloworld;
private String viewPage;
public ModelAndView handleRequest(HttpServletRequest arg0, HttpServletResponse arg1) throws Exception
{
Map<String, String> mode = new HashMap<String, String>();
mode.put("helloworld", getHelloworld());
return new ModelAndView(getViewPage(), mode);
}
public String getHelloworld()
{
return helloworld;
}
public void setHelloworld(String helloworld)
{
this.helloworld = helloworld;
}
public String getViewPage()
{
return viewPage;
}
public void setViewPage(String viewPage)
{
this.viewPage = viewPage;
}
}
6.spring xml配置文件,即上面src目錄結構裏面的springtest.xml文件。
<?xml version="1.0" encoding="UTF-8"?>
<!-- beans-->
<beans xmlns="http://www.springframework.org/schema/beans"
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.xsd">
<!-- Map,將helloworld.do映射到HelloWorldControl這個Bean上。 -->
<bean id="urlMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="helloworld.do">HelloWorldController</prop>
</props>
</property>
</bean>
<!-- ViewResolver -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="viewClass" value="org.springframework.web.servlet.view.InternalResourceView"/>
</bean>
<!-- 處理器 HelloWorldController,標記處理類爲剛纔寫好的HelloWorldController.java文件,
並將兩個屬性賦值,helloworld屬性爲“HelloWorld1”,viewPage爲剛纔寫的index.jsp文件。-->
<bean name="HelloWorldController" class="com.zf.ssh.test.HelloWorldController">
<property name="helloworld">
<value>HelloWorld1</value>
</property>
<property name="viewPage">
<value>index.jsp</value>
</property>
</bean>
</beans>
7.最後配置一下web.xml文件。
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<!-- 定義名爲springtest3的servlet,其指向剛纔寫的springtest.xml文件 -->
<servlet>
<servlet-name>springtest3</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/springtest.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<!-- 將所有.do的訪問,都交給springtest3這個servlet來處理 -->
<servlet-name>springtest3</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
8.之後利用maven編譯,利用tomcat或者其他服務器運行。訪問:http://localhost:8080/XXXX/helloworld.do,XXXX爲你的工程名。
9.總的處理過程:
(1)用戶訪問helloworld.do
(2)web.xml寫了所有.do交給springtest3那個servlet來處理。
(3)web.xml寫了springtest3的servlet定義在springtest.xml。
(4)springtest.xml裏面寫了helloworld.do交給HelloWorldController那個bean處理。
(5)springtest.xml裏面定義了HelloWorldController Bean,並指向處理類:com.zf.ssh.test.HelloWorldController,並將類內的兩個屬性分別賦值“HelloWorld1”和“index.jsp".
(6)com.zf.ssh.test.HelloWorldController類內,返回時Index.jsp這個頁面,並且具有一個helloworld參數,內容爲剛纔賦值“HelloWorld1”。
(7)index.jsp的內容是:獲取helloworld參數內容,並顯示出來。
(8)你看到了結果:
以上爲在下初學SSH中的Spring理解。如果不正確的地方,請大家指正。