package com.yf.util; import java.io.IOException; import javax.servlet.http.HttpServletResponse; import org.slf4j.Logger; import org.slf4j.LoggerFactory; /** * HttpServletResponse帮助类 */ public final class ResponseUtils { public static final Logger log = LoggerFactory .getLogger(ResponseUtils.class); /** * 发送文本。使用UTF-8编码。 * * @param response * HttpServletResponse * @param text * 发送的字符串 */ public static void renderText(HttpServletResponse response, String text) { render(response, "text/plain;charset=UTF-8", text); } /** * 发送json。使用UTF-8编码。 * * @param response * HttpServletResponse * @param text * 发送的字符串 */ public static void renderJson(HttpServletResponse response, String text) { render(response, "application/json;charset=UTF-8", text); } /** * 发送xml。使用UTF-8编码。 * * @param response * HttpServletResponse * @param text * 发送的字符串 */ public static void renderXml(HttpServletResponse response, String text) { render(response, "text/xml;charset=UTF-8", text); } /** * 发送内容。使用UTF-8编码。 * * @param response * @param contentType * @param text */ public static void render(HttpServletResponse response, String contentType, String text) { response.setContentType(contentType); response.setHeader("Pragma", "No-cache"); response.setHeader("Cache-Control", "no-cache"); response.setDateHeader("Expires", 0); response.setHeader("Access-Control-Allow-Origin", "*"); response.setHeader("access-control-allow-methods", "POST, GET,HEAD, OPTIONS,PATCH, DELETE"); response.setHeader("Access-Control-Max-Age", "3600"); response.setHeader("Access-Control-Allow-Headers", "cache-control,content-type,hash-referer,x-requested-with,Authorization"); response.setHeader("access-control-allow-credentials", "true"); try { response.getWriter().write(text); } catch (IOException e) { log.error(e.getMessage(), e); } } }