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SMMS/src/com/chinasofti/servlet/UserServlet.java

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+package com.chinasofti.servlet;
+
+import java.io.IOException;
+import java.util.List;
+
+import javax.servlet.annotation.WebServlet;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import com.chinasofti.enums.RoleId;
+import com.chinasofti.model.User;
+import com.chinasofti.service.UserService;
+import com.chinasofti.service.impl.UserServiceImpl;
+
+import net.sf.json.JSONArray;
+
+@WebServlet("/UserServlet")
+public class UserServlet extends HttpServlet {
+	
+	private static final long serialVersionUID = 1L;
+	
+	private UserService userService = new UserServiceImpl();
+	
+	protected void doGet(HttpServletRequest request, HttpServletResponse response){
+		doPost(request, response);
+	}
+
+	protected void doPost(HttpServletRequest request, HttpServletResponse response){
+		String method = request.getParameter("method");
+		if("GetUserForClazz".equals(method)){
+			getUserForClazz(request,response);
+		}
+	}
+	
+	private void getUserForClazz(HttpServletRequest request,HttpServletResponse response){
+		User user = new User();
+		user.setRoleId(RoleId.TEACHER.getId());
+		List<User> users = userService.findUsers(user);
+		try {
+			response.getWriter().write(JSONArray.fromObject(users).toString());
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
+	}
+
+}