目录
引言
使用
1、新建模块
2、导入坐标
3、创建SpringMVC控制器类
4、初始化SpringMVC环境
5、初始化Servlet容器,加载SpringMVC环境
6、配置运行
引言
SpringMVC是一种基于Java实现MVC模型的轻量级Web框架,SpringMVC是表现层(web层)的框架,也是spring框架的一部分,用于表现层功能开发。
使用SpringMVC
1、新建模块
如下
注意:有些人可能出现无src文件的情况,这是因为下载太慢!
如何解决上述问题?引入国内镜像
setting.xml文件替换为以下内容:
<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
<mirrors>
<mirror>
<id>alimaven</id>
<name>aliyun maven</name>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<mirrorOf>central</mirrorOf>
</mirror>
<mirror>
<id>uk</id>
<mirrorOf>central</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://uk.maven.org/maven2/</url>
</mirror>
<mirror>
<id>CN</id>
<name>OSChina Central</name>
<url>http://maven.oschina.net/content/groups/public/</url>
<mirrorOf>central</mirrorOf>
</mirror>
<mirror>
<id>nexus</id>
<name>internal nexus repository</name>
<url>http://repo.maven.apache.org/maven2</url>
<mirrorOf>central</mirrorOf>
</mirror>
<!-- junit镜像地址 -->
<mirror>
<id>junit</id>
<name>junit Address/</name>
<url>http://jcenter.bintray.com/</url>
<mirrorOf>central</mirrorOf>
</mirror>
<mirror>
<!--This sends everything else to /public -->
<id>nexus-aliyun</id>
<mirrorOf>*</mirrorOf>
<name>Nexus aliyun</name>
<url>http://maven.aliyun.com/nexus/content/groups/public</url>
</mirror>
<mirror>
<id>osc</id>
<mirrorOf>*</mirrorOf>
<url>http://maven.oschina.net/content/groups/public/</url>
</mirror>
<mirror>
<id>repo2</id>
<mirrorOf>central</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://repo2.maven.org/maven2/</url>
</mirror>
<mirror>
<id>net-cn</id>
<mirrorOf>central</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://maven.net.cn/content/groups/public/</url>
</mirror>
<mirror>
<id>ui</id>
<mirrorOf>central</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://uk.maven.org/maven2/</url>
</mirror>
<mirror>
<id>ibiblio</id>
<mirrorOf>central</mirrorOf>
<name>Human Readable Name for this Mirror.</name>
<url>http://mirrors.ibiblio.org/pub/mirrors/maven2/</url>
</mirror>
<mirror>
<id>jboss-public-repository-group</id>
<mirrorOf>central</mirrorOf>
<name>JBoss Public Repository Group</name>
<url>http://repository.jboss.org/nexus/content/groups/public</url>
</mirror>
<mirror>
<id>JBossJBPM</id>
<mirrorOf>central</mirrorOf>
<name>JBossJBPM Repository</name>
<url>https://repository.jboss.org/nexus/content/repositories/releases/</url>
</mirror>
</mirrors>
</settings>
2、导入坐标
在pom.xml文件中导入springmvc和servlet。
注意刷新maven
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.10.RELEASE</version>
</dependency>
</dependencies>
3、创建SpringMVC控制器类
用于处理请求。
@Controller设定SpringMVC的核心控制器bean,定义为bean
@RequestMapping设置当前控制器方法请求访问路径
@ResponseBody设置当前控制器方法,响应内容为当前返回值,返回给前端
@Controller
public class UserController {
@RequestMapping("/save")
@ResponseBody
public String save(){
System.out.println("user save ...");
return "{'module':'springmvc'}";
}
}
4、初始化SpringMVC环境
加载对应的bean
@Configuration
@ComponentScan("com.spring.controller")
public class SpringMvcConfig {
}
5、初始化Servlet容器,加载SpringMVC环境
public class ServletContainersInitConfig extends AbstractDispatcherServletInitializer {
//加载springMVC容器配置
protected WebApplicationContext createServletApplicationContext() {
AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext();
ctx.register(SpringMvcConfig.class);
return ctx;
}
//设置哪写请求归属springMVC处理
protected String[] getServletMappings() {
return new String[]{"/"};
}
//加载spring容器配置
protected WebApplicationContext createRootApplicationContext() {
return null;
}
6、配置运行
pom.xml文件需要有以下内容:
配置tomcat,jdk版本为1.8
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
</properties>
<dependencies>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.2.10.RELEASE</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.1</version>
<configuration>
<port>80</port>
<path>/</path>
</configuration>
</plugin>
</plugins>
</build>
运行程序,浏览器输入http://localhost/save,打印出save()方法return内容即成功,后端控制台打印出save()方法输出内容。