1、SpringMVC是一个基于Spring框架的Web MVC(模型-视图-控制器)框架。
流程:
①创建web-app后,向pom.xml文件导入Springmvc和servlet
目录如下:
javax.servlet
javax.servlet-api
4.0.1
provided
org.springframework
spring-webmvc
5.2.10.RELEASE
org.apache.tomcat.maven
tomcat9-maven-plugin
3.0.1
80
/
②写下一个Controller类
UserController.java
package com.Baike.Controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;
@Controller
public class UserController {
@RequestMapping("/save")
@ResponseBody
public String save() {
System.out.print("123456");
return "{'id':'1'}";
}
}
③写一个Config文件,让Spring能扫描到Controller
SpringMvcConfig.java
package com.Baike.Config;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
@Configuration
@ComponentScan("com.Baike.Controller")
public class SpringMvcConfig {
}
④:定义一个servlet容器启动的配置类,在里面加载spring的配置。
Servletboot.java
package com.Baike.Config;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
import org.springframework.web.servlet.support.AbstractDispatcherServletInitializer;
public class Servletboot extends AbstractDispatcherServletInitializer{
//加载Springmvc容器配置
@Override
protected WebApplicationContext createServletApplicationContext() {
// TODO Auto-generated method stub
AnnotationConfigWebApplicationContext ctx=new AnnotationConfigWebApplicationContext();
ctx.register(SpringMvcConfig.class);
return ctx;
}
//设置哪些请求归属Springmvc处理
@Override
protected String[] getServletMappings() {
// TODO Auto-generated method stub
return new String[]{"/"};
}
//加载spring容器配置
@Override
protected WebApplicationContext createRootApplicationContext() {
// TODO Auto-generated method stub
return null;
}
}
最后访问链接http://localhost/test/save
就能访问到资源,链接结构为localhost/你的项目名/controller的requestmapping名
整个项目结构为:
函数体:
传递方式: 普通传参
http://localhost/test/user/save?name='你好'&age=16