Homestay_app_houtai/mhotel/src/com/happy/Until/ResponseUtil.java

package com.happy.Until;

import com.happy.dto.IPage;
import net.sf.json.JSONObject;
import org.apache.poi.ss.usermodel.Workbook;

import javax.servlet.http.HttpServletResponse;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.util.List;

public class ResponseUtil {

	public static void write(Object o, HttpServletResponse response)
			throws Exception {
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();
		out.println(o.toString());
		out.flush();
		out.close();
	}

	public static void write(String o, HttpServletResponse response)
			throws Exception {
		response.setContentType("text/html;charset=utf-8");
		PrintWriter out = response.getWriter();
		out.println(o.toString());
		out.flush();
		out.close();
	}

	public static void writeJsonPageData(HttpServletResponse respone, List listPage, int page, int rows, int total) {
		respone.setContentType("application/json;charset=utf-8");

		JSONObject resultJson = new JSONObject();
		if (listPage == null || listPage.size() == 0) {
			resultJson.put("rows", "");
			resultJson.put("total", 0);
		} else {
			resultJson.put("code", 200);
			resultJson.put("rows", rows);
			// int total = listAll.size();
			resultJson.put("total", total);// 总记录数
			int totalPage = total % rows == 0 ? (total / rows) : (total / rows) + 1;// 总页数
			resultJson.put("totalPage", totalPage);
			resultJson.put("currentPage", page);// 当前页
			resultJson.put("numPerPage", rows);// 每页数
			resultJson.put("nextPage", totalPage - page == 0 ? page : page + 1);// 下一页
			resultJson.put("previousPage", page - 0 == 1 ? page : page - 1);// 上一页
			resultJson.put("hasPreviousPage", true);// 有上一页
			resultJson.put("hasNextPage", true);// 有下一页
			resultJson.put("firstPage", true);// 首页
			resultJson.put("lastPage", true);// 尾页
			resultJson.put("listPage", listPage);

		}

		PrintWriter out;
		try {
			out = respone.getWriter();
			out.print(resultJson.toString());
			out.flush();
			out.close();
		} catch (Exception e) {
			// //System.out.println("Comm_Util_writeJson---->" + e);
		}
	}

	public static void writeJsonIPage(HttpServletResponse respone, IPage iPage) {
		respone.setContentType("application/json;charset=utf-8");

		JSONObject resultJson = new JSONObject();
		if (iPage.getPageList() == null || iPage.getPageList().size() == 0) {
			resultJson.put("rows", "");
			resultJson.put("total", 0);
		} else {
			resultJson.put("code", 200);
			resultJson.put("rows", iPage.getRows());
			// int total = listAll.size();
			resultJson.put("total", iPage.getTotal());// 总记录数
			int totalPage = iPage.getTotal() % iPage.getRows() == 0 ? (iPage.getTotal() / iPage.getRows()) : (iPage.getTotal() / iPage.getRows()) + 1;// 总页数
			resultJson.put("totalPage", totalPage);
			resultJson.put("currentPage", iPage.getPage());// 当前页
			resultJson.put("numPerPage", iPage.getRows());// 每页数
			resultJson.put("nextPage", totalPage - iPage.getPage() == 0 ? iPage.getPage() : iPage.getPage() + 1);// 下一页
			resultJson.put("previousPage", iPage.getPage() - 0 == 1 ? iPage.getPage() : iPage.getPage() - 1);// 上一页
			resultJson.put("hasPreviousPage", true);// 有上一页
			resultJson.put("hasNextPage", true);// 有下一页
			resultJson.put("firstPage", true);// 首页
			resultJson.put("lastPage", true);// 尾页
			resultJson.put("pageList",iPage.getPageList()); // 分页数据
		}

		PrintWriter out;
		try {
			out = respone.getWriter();
			out.print(resultJson.toString());
			out.flush();
			out.close();
		} catch (Exception e) {
			// //System.out.println("Comm_Util_writeJson---->" + e);
		}
	}

	public static void writeJson(HttpServletResponse respone, String result) {
		respone.setContentType("application/json;charset=utf-8");
		PrintWriter out;
		try {
			out = respone.getWriter();
			out.print(result);
			out.flush();
			out.close();
		} catch (Exception e) {
			// //System.out.println("Comm_Util_writeJson---->" + e);
		}
	}

	public static void export(HttpServletResponse response, Workbook wb,
			String fileName) throws Exception {
		response.setHeader("Content-Disposition", "attachment;filename="
				+ new String(fileName.getBytes("utf-8"), "iso8859-1"));
		response.setContentType("application/ynd.ms-excel;charset=UTF-8");
		OutputStream out = response.getOutputStream();
		wb.write(out);
		out.flush();
		out.close();
	}
}