今日总结

今天主要花时间学习了SpringMVC相关知识，并创建了一个练习项目，实践操作Springmvc

package com.aurora.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class HelloController {
    //handler -> springmvc/hello return "hello spring mvc!"
    @RequestMapping("springmvc/hello") //对外访问的地址，到handlerMapping注册的注解
    @ResponseBody //直接返回字符串给前端，不要找视图解析器
    public String hello(){

        System.out.println("HelloController.hello");
        //返回给前端
        return "hello springmvc";
    }
}

package com.aurora.config;

import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

//可以被web项目加载，会初始化ioc容器，会设置dispatcherServlet的地址
public class SpringMvcInit extends AbstractAnnotationConfigDispatcherServletInitializer {
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class[0];
    }

    //设置我们项目对应的配置类
    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class[]{MvcConfig.class};
    }

    //配置SpringMVC内部自带Servlet 的访问地址
    @Override
    protected String[] getServletMappings() {
        return new String[]{ "/" };
    }
}

package com.aurora.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class HelloController {
    //handler -> springmvc/hello return "hello spring mvc!"
    @RequestMapping("springmvc/hello") //对外访问的地址，到handlerMapping注册的注解
    @ResponseBody //直接返回字符串给前端，不要找视图解析器
    public String hello(){

        System.out.println("HelloController.hello");
        //返回给前端
        return "hello springmvc";
    }
}