重寫Servlet的Init()方法

（1）首先新建一個重寫Servlet的Init()方法的類繼承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重寫Init()方法
 * @author 花季歲月
 */
public class ServletProxy extends HttpServlet {
	private static final long serialVersionUID = -2787541353517287396L;
	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再繼承重寫Servlet的類 (ServletProxy) 

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.beans.factory.annotation.Autowired;
public class xxxServlet extends ServletProxy{
    private static final long serialVersionUID = 4655255916024403271L;
    @Autowired
    private ***Service ***Service;
    //...get/set方法自行生成下
    public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doPost(request, response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
        //呼叫介面
		***Service.介面方法
	}
}