springmvc 環境的搭建
在網上看了很多教程,感覺都是坑,當然也可能是自己太坑了,沒有看懂別人怎麼寫的!所以還是把自己的經過記錄一下,防止自己忘記
第一步
新建maven工程,maven是一個管理包的工具,用起來很方便。當然電腦也很卡。這裏名字隨意命名;
填一個小坑,maven工程選擇的時候沒有jee工程,所以選擇maven-archtype-webapp這個工程,由於這是個java工程,所以在後續需要轉化成javaweb工程,否則tomcat無法運行!
1,右鍵功臣config->converto facets project!名字大致是這個樣子的!
2,選擇轉化成動態工程,並且設置futher configuration avaliable
把content directory 改寫成src/main/webapp
3,runtimes添加運行的工程!
4,右鍵工程選擇deployment Assembly,作如下操作Add -> Java Build Path Entries -> Maven Dependencies -> Finish!這樣把maven的java工程轉化成web的工程就完成了!
第二部
找到pom.xml在依賴文件中貼入如下代碼
<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>spring</groupId>
<artifactId>springmvc</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springmvc 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>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<dependency>
<groupId>taglibs</groupId>
<artifactId>standard</artifactId>
<version>1.1.2</version>
</dependency>
</dependencies>
<!--下面這裏是版本號,換個springmvc版本號只需要更改這裏就行了 -->
<properties>
<spring.version>4.1.1.RELEASE</spring.version>
</properties>
<build>
<finalName>springmvc</finalName>
</build>
</project>
第三部修改web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<display-name>favspringmvcrestful</display-name>
<filter>
<filter-name>encodingFilter</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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--其他地方我是複製別人的,但是下面這一句要添加,知名springmvc用的servelet,如果不寫的話默認application.xml,命名規則是<slevete-name>+serlet.xml,也可以特殊制定其他的名字要在第二個註釋中配置
-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springMVC-servlet.xml</param-value>
</context-param>
<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!--我感覺這個地方和第一個註釋的地方作用是一樣的,但是如果不寫的話還會報IO錯誤說找不到springMVC-servlet.xml,無解
-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springMVC-servlet.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springMVC</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
第四部分修改springMVC-serlet.xml
注意springmvc的命名規則,不然又會報找不到這個xml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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-4.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd">
<context:component-scan base-package="com.zzuli.com"></context:component-scan>
<!-- 這裏是添加掃描包的路徑-->
<mvc:annotation-driven/>
<!-- 設置使註解生效-->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/views" />
<!-- view視圖的前綴-->
<property name="suffix" value=".jsp" />
<!-- view視圖的後綴-->
</bean>
</beans>
5寫java類
package com.zzuli.com;
import java.util.HashMap;
import java.util.Map;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class HelloController {
@RequestMapping("/zzz")
public ModelAndView greeting(
@RequestParam(value = "name", defaultValue = "World") String name) {
System.out.println("Hello " + name);
Map<String, Object> map = new HashMap<String, Object>();
map.put("userName", name);
return new ModelAndView("/hello", map);
}
}
6寫視圖文件
在WEB-INF中新建views文件夾,並且新建如下hello.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Hello</title>
</head>
<body>
你好,${userName }
</body>
</html>
7運行
正常情況下這個是可以啓動的,反正我的可以
在瀏覽器中輸入如下地址
http://localhost:8080/springmvc/zzz
瀏覽器會顯示
你好,World
在瀏覽器中輸入如下地址
http://localhost:8080/springmvc/zzz?name=lol
瀏覽器會顯示
你好,lol