小编给大家分享一下如何在IDEA中搭建最小可用SpringMVC项目，相信大部分人都还不怎么了解，因此分享这篇文章给大家参考一下，希望大家阅读完这篇文章后大有收获，下面让我们一起去了解一下吧！
专注于为中小企业提供成都网站建设、做网站服务,电脑端+手机端+微信端的三站合一,更高效的管理,为中小企业泸溪免费做网站提供优质的服务。我们立足成都，凝聚了一批互联网行业人才，有力地推动了数千家企业的稳健成长，帮助中小企业通过网站建设实现规模扩充和转变。
1. 新建 SpringMVC 的 Web 项目
2. 代码编写
代码参考 《Spring 实战》（第四版）,本文和书中代码略有差异
删除不需要的配置文件
编写 JavaConfig 文件
package com.yangrd.springmvc.config;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;
public class HelloWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {
@Override
protected Class[] getRootConfigClasses() {
System.out.println("getRootConfig");
return new Class[]{RootConfig.class};
}
@Override
protected Class[] getServletConfigClasses() {
System.out.println("getServletConfig");
return new Class []{WebConfig.class};
}
@Override
protected String[] getServletMappings() {
System.out.println("getServletMappings");
return new String[]{"/"};
}
}新建配置文件 RootConfig.java
package com.yangrd.springmvc.config;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.FilterType;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
@Configuration
@ComponentScan(basePackages = {"com.yangrd.springmvc"},
excludeFilters = {@ComponentScan.Filter(type= FilterType.ANNOTATION,value = EnableWebMvc.class)})
public class RootConfig {
}新建配置文件 WebConfig.java
package com.yangrd.springmvc.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
@Configuration
@EnableWebMvc
@ComponentScan("com.yangrd.springmvc.controller")
public class WebConfig extends WebMvcConfigurerAdapter {
@Bean
public ViewResolver viewResolver(){
InternalResourceViewResolver resolver = new InternalResourceViewResolver();
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".html");
resolver.setExposeContextBeansAsAttributes(true);
return resolver;
}
@Override
public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer){
configurer.enable();
}
}编写 Controller
package com.yangrd.springmvc.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import static org.springframework.web.bind.annotation.RequestMethod.GET;
/**
*
*/
@Controller //声明为一个控制器
public class HelloController {
@RequestMapping(value = "/home",method = GET)//处理对 “/” 的 GET 请求
public String hello(){
return "hello"; //逻辑视图名为hello
}
}编写 view 文件
Hello
hello world
