SpringMVC容器中Servlet如何调用service层接口

标题:在SpringMVC容器中Servlet如何调用Service层接口?


        直接最简单有效的方法,重写Servlet的Init()方法。代码如下:

1)、 首先新建一个重写Servlet的Init()方法的类继承HttpServlet

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import org.springframework.beans.factory.config.AutowireCapableBeanFactory;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
/**
 * 描述:Servlet重写Init()方法
 * @author WangKun
 */
public class ServletProxy extends HttpServlet {  
/**
*/
private static final long serialVersionUID = 1L;


public void init() throws ServletException {  
       super.init();  
       WebApplicationContext wac = WebApplicationContextUtils.getWebApplicationContext(getServletContext());  
       AutowireCapableBeanFactory factory = wac.getAutowireCapableBeanFactory();  
       factory.autowireBean(this);  
   }  
}  

2)、新建自己需要的Servlet再继承重写Servlet的类 ( ServletProxy)  


import javax.servlet.ServletException;  
import javax.servlet.http.HttpServletRequest;  
import javax.servlet.http.HttpServletResponse;  
import org.springframework.beans.factory.annotation.Autowired;

public class ***Servlet extends ServletProxy {

@Autowired
private ***Service ***Service;

    private static final long serialVersionUID = 2827297299439162553L;  
  
    public void doGet(HttpServletRequest request, HttpServletResponse response)   throws Exception {  
        doPost(request, response);  

    }  
  
  
public void doPost(HttpServletRequest request, HttpServletResponse response)    throws Exception { 
         
          ***Service.自己的接口方法。

        你自己的东西自己写了。
    }
  
}


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