通过HttpServletResponse将自定对象或内容以JSON（这边使用了alibaba的fastjson,其依赖包为fastjson-1.2.3.jar）或HTML数据格式返回到终端，通过此工具类将常用流程代码及header头信息都规整好，直接写出结果，具体如下

import java.io.IOException;@b@import java.io.PrintWriter;@b@import java.util.List;@b@import java.util.Map;@b@import java.util.Map.Entry;@b@import java.util.Set;@b@@b@import javax.servlet.http.Cookie;@b@import javax.servlet.http.HttpServletRequest;@b@import javax.servlet.http.HttpServletResponse;@b@@b@import org.apache.commons.lang.StringUtils;@b@import org.apache.commons.logging.Log;@b@import org.apache.commons.logging.LogFactory;@b@@b@import com.alibaba.fastjson.JSON;@b@@b@public class OutDataUtil {@b@@b@    /** logger */@b@    private static final Log logger = LogFactory.getLog(OutDataUtil.class);@b@@b@    /**@b@     * 返回响应数据@b@     * @b@     * @param httpServletResponse@b@     *            http响应@b@     * @param data@b@     *            数据类@b@     */@b@    public static void outData(HttpServletResponse httpServletResponse,@b@            Object data) {@b@        outData(httpServletResponse, JSON.toJSONString(data));@b@    }@b@@b@    /**@b@     * 返回响应数据@b@     * @b@     * @param httpServletResponse@b@     *            http响应@b@     * @param jsonString@b@     *            json字符串@b@     */@b@    public static void outData(HttpServletResponse httpServletResponse,@b@            String jsonString) {@b@        try {@b@            httpServletResponse.setCharacterEncoding("utf-8");@b@            httpServletResponse.setHeader("Content-type",@b@                    "text/html;charset=utf-8");@b@            PrintWriter writer = httpServletResponse.getWriter();@b@            if (StrUtil.isNotEmpty(jsonString)) {@b@                httpServletResponse.setHeader("Content-Length",@b@                        String.valueOf(jsonString.getBytes("utf-8").length));@b@            }@b@            writer.print(jsonString);@b@            logger.info("outData success--------------------:"+jsonString);@b@            httpServletResponse.flushBuffer();@b@            // 无需flush和close，Tomcat会帮我处理@b@        } catch (IOException e) {@b@            logger.error("outData error------------------:", e);@b@        }@b@    }@b@@b@    /** 输出web(H5+PC)请求结果 */@b@    public static void outWebData(HttpServletRequest httpRequest,@b@            HttpServletResponse httpServletResponse, String responseData,@b@            Map<String, String> cookieMap, List<String> toBeDeletedCookies) {@b@        try {@b@            httpServletResponse.setCharacterEncoding("utf-8");@b@            httpServletResponse.setHeader("Content-type",@b@                    "text/html;charset=utf-8");@b@@b@            if (cookieMap != null && !cookieMap.isEmpty()) {@b@                Set<Entry<String, String>> entrySet = cookieMap.entrySet();@b@                for (Entry<String, String> entry : entrySet) {@b@                    Cookie cookie = new Cookie(entry.getKey(), entry.getValue());@b@                    cookie.setMaxAge(60 * 15);@b@                    cookie.setSecure(true);@b@                    cookie.setPath("/");@b@                    httpServletResponse.addCookie(cookie);@b@                }@b@            }@b@            if (toBeDeletedCookies != null && !toBeDeletedCookies.isEmpty()) {@b@                try {@b@                    Cookie[] cookieArray = httpRequest.getCookies();@b@                    for (Cookie cookie : cookieArray) {@b@                        for (String cookeName : toBeDeletedCookies)@b@                            if (StringUtils.equals(cookie.getName(), cookeName)) {@b@                                cookie.setMaxAge(0);@b@                            }@b@                    }@b@                } catch (Exception e) {@b@                    logger.error("outWebData删除cookie失败", e);@b@                }@b@            }@b@@b@            PrintWriter writer = httpServletResponse.getWriter();@b@            if (StrUtil.isNotEmpty(responseData)) {@b@                httpServletResponse.setHeader("Content-Length",@b@                        String.valueOf(responseData.getBytes("utf-8").length));@b@            }@b@            writer.print(responseData);@b@            httpServletResponse.flushBuffer();@b@        } catch (IOException e) {@b@            logger.error("返回数据结果IO异常", e);@b@        }@b@    }@b@@b@}