SpringMVC是如何处置线程安全

5.线程安全

一般情况下，@Controller是单例的，和Servlet那时是一样的，参见我的Servlet的第二章处理线程安全的问题。

例5.1：

package com;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletConfig;

import javax.servlet.ServletContext;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import javax.servlet.http.HttpSession;

import org.springframework.context.ApplicationContext;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.context.ServletConfigAware;

import org.springframework.web.context.ServletContextAware;

import org.springframework.web.context.support.WebApplicationContextUtils;

import org.springframework.web.servlet.ModelAndView;

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

import com.jspsmart.upload.File;

import com.jspsmart.upload.Files;

import com.jspsmart.upload.SmartUpload;

import com.jspsmart.upload.SmartUploadException;

@Controlle

public class HelloWorldController implements ServletConfigAware,ServletContextAware {

    private ServletContext servletContext;  

    @Override  

    public void setServletContext(ServletContext arg0) {  

        this.servletContext = arg0;  

    }  

    private ServletConfig servletConfig;  

    @Override  

    public void setServletConfig(ServletConfig arg0) {  

        this.servletConfig = arg0;  

    }            

更多请见：https://blog.csdn.net/qq_44639795/article/details/103202378