}
/*
* (non-Javadoc)
*
* @see com.gomall.service.IProductService#findById(int)
*/
@Override
public Product findById(int id) {
for (Product product : products) {
if (product.getId() == id) {
return product;
}
}
return null;
}
/*
* (non-Javadoc)
*
* @see com.gomall.service.IProductService#deleteById(int)
*/
@Override
public boolean deleteById(int id) {
try {
Product product = findById(id);
if (product != null) {
products.remove(product);
}
} catch (Exception e) {
e.printStackTrace();
return false;
}
return true;
}
}
ProductAction.java：：
package com.gomall.action;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.codehaus.jackson.map.ObjectMapper;
import com.gomall.bean.Product;
import com.gomall.service.IProductService;
import com.gomall.service.ProductService;
@WebServlet("/Product")
public class ProductAction extends HttpServlet {
private static final long serialVersionUID = 1L;
public ProductAction() {
super();
}
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
/*模拟网络延时*/
try {
Thread.sleep(3000);
} catch (InterruptedException e) {
e.printStackTrace();
}
request.setCharacterEncoding("utf-8");
response.setCharacterEncoding("utf-8");
String act = request.getParameter("act");
IProductService productService = new ProductService();
/**用于序列化json*/
ObjectMapper mapper = new ObjectMapper();
PrintWriter out=response.getWriter();
if (act.equals("getAll")) {
String json = mapper.writeValueAsString(productService.getAll());
out.append(json);
} else if (act.equals("area")) {
String callback=request.getParameter("callback");
out.append(callback+"('"+new Date()+"')");
} else if (act.equals("getJSONP")) {
String callback=request.getParameter("callback");
String json = mapper.writeValueAsString(productService.getAll());
out.append(callback+"("+json+")");
} else if (act.equals("getAllCORS")) {
/**向响应的头部中添加CORS信息*/
response.addHeader("Access-Control-Allow-Origin", "*");
response.addHeader("Access-Control-Allow-Methods", "GET,POST");
String json = mapper.writeValueAsString(productService.getAll());
out.append(json);
} else if(act.equals("del")){
/**向响应的头部中添加CORS信息*/
response.addHeader("Access-Control-Allow-Origin", "*");
response.addHeader("Access-Control-Allow-Methods", "GET,POST");
int id=Integer.parseInt(request.getParameter("id"));
String json = mapper.writeValueAsString(productService.deleteById(id));
