设置请求映射路径

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• @RequestMapping

- 类型:方法注解类注解 - 位置: SpringMVC控制器方法定义上方 - 作用:设置当前控制器方法请求访问路径，如果设置在类上统一设置当前控制器方法请求访问路径前缀

@Controller
@RequestMapping("/book")
public class BookController { 
    @RequestMapping("/save")
    @ResponseBody
    public String save(){ 
        System.out.println("Book save....");
        return "'module':'Book Save'";
    }
}

🔥ServletContainersInitConfig

package com.jkj.config;
import org.springframework.web.servlet.support.AbstractAnnotationConfigDispatcherServletInitializer;

public class ServletContainersInitConfig extends AbstractAnnotationConfigDispatcherServletInitializer { 

    @Override
    protected Class<?>[] getRootConfigClasses() { 
        return new Class[0];
    }

    @Override
    protected Class<?>[] getServletConfigClasses() { 
        return new Class[]{ SpringMvcConfig.class};
    }

    @Override
    protected String[] getServletMappings() { 
        return new String[]{ "/"};
    }
}
/* public class ServletContainersInitConfig extends AbstractDispatcherServletInitializer { //加载SpringMVC容器配置 @Override protected WebApplicationContext createServletApplicationContext() { AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext(); ctx.register(SpringMvcConfig.class); return ctx; } //设置哪些请求可以归属SpringMVC处理 @Override protected String[] getServletMappings() { return new String[]{"/"}; } //加载Spring容器配置 @Override protected WebApplicationContext createRootApplicationContext() { AnnotationConfigWebApplicationContext ctx = new AnnotationConfigWebApplicationContext(); ctx.register(SpringConfig.class); return ctx; } }*/

🔥SpringMvcConfig

package com.jkj.config;

import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;

@Configuration
@ComponentScan("com.jkj.controller")
public class SpringMvcConfig { 
}

🔥BookController

package com.jkj.controller;

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

@Controller
@RequestMapping("/book")
public class BookController { 
    @RequestMapping("/save")
    @ResponseBody
    public String save(){ 
        System.out.println("Book save....");
        return "'module':'Book Save'";
    }
}

🔥UserController

package com.jkj.controller;

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

@Controller
@RequestMapping("/user")
public class UserController { 
    @RequestMapping("/save")
    @ResponseBody
    public String save(){ 
        System.out.println("User save....");
        return "'module':'User Save'";
    }
    @RequestMapping("/del")
    @ResponseBody
    public String delete(){ 
        System.out.println("User delete....");
        return "'module':'User delete'";
    }
}