Java微信公众平台开发_07_JSSDK图片上传

2022-07-09 22:18:29

一、本节要点

1.获取jsapi_ticket

    //2.获取getJsapiTicket的接口地址,有效期为7200秒

    private static final String GET_JSAPITICKET_URL="https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=ACCESS_TOKEN&type=jsapi"; 

/**

     * @desc ：2.获取JsapiTicket

     *

     * @param accessToken  有效凭证

     * @return

     * @throws Exception String

     */

    public static String getJsapiTicket(String accessToken) throws Exception {

        //1.获取请求url

        String url=GET_JSAPITICKET_URL.replace("ACCESS_TOKEN", accessToken);

        //2.发起GET请求，获取返回结果

        JSONObject jsonObject=HttpHelper.doGet(url);

        logger.info("jsonObject:"+jsonObject.toJSONString());

        //3.解析结果，获取accessToken

        String jsapiTicket="";

        if (null != jsonObject) {

            //4.错误消息处理

            if (jsonObject.getInteger("errcode")!=null && 0 != jsonObject.getInteger("errcode")) {

                int errCode = jsonObject.getInteger("errcode");

                String errMsg = jsonObject.getString("errmsg");

                throw new Exception("error code:"+errCode+", error message:"+errMsg);

                //5.成功获取jsapiTicket

            }else {

                jsapiTicket=jsonObject.getString("ticket");

            }

        }  

        return jsapiTicket;

    }

2.JS-SDK 使用权限签名算法

    /**

     * @desc ：4.获取前端jsapi需要的配置参数

     *

     * @param request

     * @return String

     */

    public static String getJsapiConfig(HttpServletRequest request){  

        //1.准备好参与签名的字段

        //1.1 url

        /*

         *以http://localhost/test.do?a=b&c=d为例

         *request.getRequestURL的结果是http://localhost/test.do

         *request.getQueryString的返回值是a=b&c=d

         */

        String urlString = request.getRequestURL().toString();

        String queryString = request.getQueryString();

        String queryStringEncode = null;

        String url;

        if (queryString != null) {

            queryStringEncode = URLDecoder.decode(queryString);

            url = urlString + "?" + queryStringEncode;

        } else {

            url = urlString;

        }

        //1.2 noncestr

        String nonceStr=UUID.randomUUID().toString();      //随机数

        //1.3 timestamp

        long timeStamp = System.currentTimeMillis() / 1000;     //时间戳参数  

        String signedUrl = url;

        String accessToken = null;

        String ticket = null;

        String signature = null;       //签名

        try {

            //1.4 jsapi_ticket

            accessToken=getAccessToken(Env.APP_ID, Env.APP_SECRET);

            ticket=getJsapiTicket(accessToken);  

            //2.进行签名，获取signature

            signature=getSign(ticket,nonceStr,timeStamp,signedUrl);  

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }  

        logger.info("accessToken:"+accessToken);

        logger.info("ticket:"+ticket);

        logger.info("nonceStr:"+nonceStr);

        logger.info("timeStamp:"+timeStamp);

        logger.info("signedUrl:"+signedUrl);

        logger.info("signature:"+signature);

        logger.info("appId:"+Env.APP_ID);

        String configValue = "{signature:'" + signature + "',nonceStr:'" + nonceStr + "',timeStamp:'"

                + timeStamp + "',appId:'" + Env.APP_ID + "'}";

        logger.info("configValue:"+configValue);

        return configValue;

    }  

    /**

     * @desc ： 4.1 生成签名的函数

     *

     * @param ticket jsticket

     * @param nonceStr 随机串，自己定义

     * @param timeStamp 生成签名用的时间戳

     * @param url 需要进行免登鉴权的页面地址，也就是执行dd.config的页面地址

     * @return

     * @throws Exception String

     */

    public static String getSign(String jsTicket, String nonceStr, Long timeStamp, String url) throws Exception {

        String plainTex = "jsapi_ticket=" + jsTicket + "&noncestr=" + nonceStr + "&timestamp=" + timeStamp + "&url=" + url;

        System.out.println(plainTex);

        try {

            MessageDigest crypt = MessageDigest.getInstance("SHA-1");

            crypt.reset();

            crypt.update(plainTex.getBytes("UTF-8"));

            return byteToHex(crypt.digest());

        } catch (NoSuchAlgorithmException e) {

            throw new Exception(e.getMessage());

        } catch (UnsupportedEncodingException e) {

            throw new Exception(e.getMessage());

        }

    }  

    /**

     * @desc ：4.2 将bytes类型的数据转化为16进制类型

     *

     * @param hash

     * @return

     *   String

     */

    private static String byteToHex(byte[] hash) {

        Formatter formatter = new Formatter();

        for (byte b : hash) {

            formatter.format("%02x", new Object[] { Byte.valueOf(b) });

        }

        String result = formatter.toString();

        formatter.close();

        return result;

    }

2.1 签名生成规则

（1）参与签名的字段包括：

noncestr（随机字符串）,

有效的jsapi_ticket,

timestamp（时间戳）,

url（当前网页的URL，不包含#及其后面部分）。

（2）对所有待签名参数按照字段名的ASCII 码从小到大排序（字典序）后，使用URL键值对的格式（即 key1=value1&key2=value2…）拼接成字符串string1。这里需要注意的是所有参数名均为小写字符。对string1作sha1加密，字段名和字段值都采用原始值，不进行URL 转义。

（3）对string1进行sha1签名，得到signature：

2.2 签名算法应用实例

（1）待签名参数：

noncestr=Wm3WZYTPz0wzccnW

jsapi_ticket=sM4AOVdWfPE4DxkXGEs8VMCPGGVi4C3VM0P37wVUCFvkVAy_90u5h9nbSlYy3-Sl-HhTdfl2fzFy1AOcHKP7qg

timestamp=1414587457

url=http://mp.weixin.qq.com

（2）字典序

string1=jsapi_ticket=sM4AOVdWfPE4DxkXGEs8VMCPGGVi4C3VM0P37wVUCFvkVAy_90u5h9nbSlYy3-Sl-HhTdfl2fzFy1AOcHKP7qg&noncestr=Wm3WZYTPz0wzccnW&timestamp=1414587457&url=http://mp.weixin.qq.com

（3）sha1加密

signature=sha1(string1)

3.JS-SDK使用步骤

（1）绑定域名

测试号：

（2）引入JS文件

在需要调用JS接口的页面引入如下JS文件，（支持https）：http://res.wx.qq.com/open/js/jweixin-1.2.0.js

<script type="text/javascript"  src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>

（3）通过config接口注入权限验证配置

//1.jsapi签名校验

wx.config({

    beta: true,// 必须这么写，否则在微信插件有些jsapi会有问题

    debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。

    appId: _config.appId, // 必填，公众号的唯一标识

    timestamp: _config.timeStamp, // 必填，生成签名的时间戳

    nonceStr: _config.nonceStr, // 必填，生成签名的随机串

    signature: _config.signature,// 必填，签名，见附录1

    jsApiList: [ 'checkJsApi', 'onMenuShareAppMessage',

        'onMenuShareWechat', 'startRecord', 'stopRecord',

        'onVoiceRecordEnd', 'playVoice', 'pauseVoice', 'stopVoice',

        'uploadVoice', 'downloadVoice', 'chooseImage',

        'previewImage', 'uploadImage', 'downloadImage',

        'getNetworkType', 'openLocation', 'getLocation',

        'hideOptionMenu', 'showOptionMenu', 'hideMenuItems',

        'showMenuItems', 'hideAllNonBaseMenuItem',

        'showAllNonBaseMenuItem', 'closeWindow', 'scanQRCode',

        'previewFile', 'openEnterpriseChat',

        'selectEnterpriseContact','chooseInvoice'

        ]// 必填，需要使用的JS接口列表，所有JS接口列表见附录2

});

（4）通过ready接口处理成功验证

（5）通过error接口处理失败验证

//2.jsapi签名校验失败后执行error

wx.error(function(err){

    alert('wx error: ' + JSON.stringify(err));

    // config信息验证失败会执行error函数，如签名过期导致验证失败，具体错误信息可以打开config的debug模式查看，也可以在返回的res参数中查看，对于SPA可以在这里更新签名。

});

4.图片上传

4.1 图片上传的流程

（1）使用 jssdk 上传图片到微信服务器，返回图片对应的mediaId( 即 serverId)

    //2.2 上传图片

    var images = {

            localId : [],

            serverId : []

    };

    $("#uploadImg").click(function(){

        //2.2.1拍照或从手机相册中选图

        wx.chooseImage({

            success : function(res) {

                images.localId = res.localIds;

                alert('已选择 ' + res.localIds.length + ' 张图片');

                //2.2.2 上传图片

                uploadImg();

            }

        });

    });

    // 2.2.2 上传图片

    function uploadImg() {

        if (images.localId.length == 0) {

            alert('请先使用 chooseImage 接口选择图片');

            return;

        }

        var i = 0, length = images.localId.length;

        images.serverId = [];

        function upload() {

            wx.uploadImage({

                localId : images.localId[i],

                success : function(res) {

                    i++;

                    alert('已上传：' + i + '/' + length);

                    images.serverId.push(res.serverId);

                    //将serverId上传至服务器

                    alert("ajax请求即将执行--");

                    $.ajax({

                        type : "POST",

                        url : "http://se9mxs.natappfree.cc/weixin_gz/uploadimg",

                        data : {

                            serverId : res.serverId

                        },

                        dataType : "text",

                        success : function(data) {

                            alert(data);

                        }

                    });

                    if (i < length) {

                        upload();

                    }

                },

                fail : function(res) {

                    alert(JSON.stringify(res));

                }

            });

        }

        upload();

    };

（2）使用素材管理接口，根据 mediaId 从微信服务器将图片下载至服务器本地。参见：Java微信公众平台开发_06_素材管理

protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        String mediaId=request.getParameter("serverId");

        System.out.println("serverId:"+mediaId);

        try {

            String accessToken=AuthHelper.getAccessToken(Env.APP_ID, Env.APP_SECRET);

            //String savePath=System.getProperty("user.dir").replaceAll("\\\\", "/")+"/WebContent/img/"+mediaId+".png";

            String fileDir=request.getSession().getServletContext().getRealPath("").replaceAll("\\\\", "/")+"/img/";

            System.out.println("fileDir:"+fileDir);

            //2.调用业务类，获取临时素材

            TempMaterialService.getTempMaterial(accessToken, mediaId, fileDir);

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        PrintWriter out = response.getWriter();

        out.print("HHHHHHHHHH");

        out.close();

        out = null;  

    }

二、代码实现

1.前端页面—uploadImg.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"

    pageEncoding="UTF-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

<head>

<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

<title>JSSDK之上传图片</title>

<script src="js/jquery-3.2.1.min.js"></script>

<script type="text/javascript"

    src="http://res.wx.qq.com/open/js/jweixin-1.2.0.js"></script>

<script type="text/javascript">

    var _config =

<%=com.ray.weixin.gz.util.AuthHelper.getJsapiConfig(request)%>

    ;

</script>

<script type="text/javascript" src="js/auth.js"></script>

</head>

<body>

    <div align="center">

        <img id="userImg" alt="头像" src="">

    </div>

    <div align="center">

        <span>UserName:</span>

        <div id="userName" style="display: inline-block"></div>

    </div>

    <div align="center">

        <span>UserId:</span>

        <div id="userId" style="display: inline-block"></div>

    </div>

    <div align="center">

        <span class="desc">是否验证成功</span>

        <button class="btn btn_primary" id="yanzheng">验证</button>

    </div>

    <div align="center">

        <span class="desc">测试按钮</span>

        <button class="btn btn_primary" id="ceshi">测试</button>

    </div>

    <div align="center">

        <span class="desc">上传图片按钮</span>

        <button class="btn btn_primary" id="uploadImg">上传图片</button>

    </div>

    <div align="center">

        <span class="desc">拍照上传图片按钮</span>

        <button class="btn btn_primary" id="uploadImgFromCamera">拍照上传</button>

    </div>

    <div align="center">

        <span class="desc">扫码按钮</span>

        <button class="btn btn_primary" id="qrcode" >扫码</button>

    </div>

</body>

</html>

auth.js

//1.jsapi签名校验

wx.config({

    beta: true,// 必须这么写，否则在微信插件有些jsapi会有问题

    debug: true, // 开启调试模式,调用的所有api的返回值会在客户端alert出来，若要查看传入的参数，可以在pc端打开，参数信息会通过log打出，仅在pc端时才会打印。

    appId: _config.appId, // 必填，公众号的唯一标识

    timestamp: _config.timeStamp, // 必填，生成签名的时间戳

    nonceStr: _config.nonceStr, // 必填，生成签名的随机串

    signature: _config.signature,// 必填，签名，见附录1

    jsApiList: [ 'checkJsApi', 'onMenuShareAppMessage',

        'onMenuShareWechat', 'startRecord', 'stopRecord',

        'onVoiceRecordEnd', 'playVoice', 'pauseVoice', 'stopVoice',

        'uploadVoice', 'downloadVoice', 'chooseImage',

        'previewImage', 'uploadImage', 'downloadImage',

        'getNetworkType', 'openLocation', 'getLocation',

        'hideOptionMenu', 'showOptionMenu', 'hideMenuItems',

        'showMenuItems', 'hideAllNonBaseMenuItem',

        'showAllNonBaseMenuItem', 'closeWindow', 'scanQRCode',

        'previewFile', 'openEnterpriseChat',

        'selectEnterpriseContact','chooseInvoice'

        ]// 必填，需要使用的JS接口列表，所有JS接口列表见附录2

});

//2.jsapi签名校验成功后执行ready

wx.ready(function(){

    // config信息验证后会执行ready方法，所有接口调用都必须在config接口获得结果之后，config是一个客户端的异步操作，所以如果需要在页面加载时就调用相关接口，则须把相关接口放在ready函数中调用来确保正确执行。对于用户触发时才调用的接口，则可以直接调用，不需要放在ready函数中。

    //2.1 提示jsapi签名验证成功

    $("#yanzheng").html("验证成功");  

    $("#ceshi").click(function(){

        alert("ceshiaaa");

    });

    $("#checkJsApi").click(function(){

        wx.checkJsApi({

            jsApiList: [ 'checkJsApi', 'onMenuShareAppMessage',

                'onMenuShareWechat', 'startRecord', 'stopRecord',

                'onVoiceRecordEnd', 'playVoice', 'pauseVoice', 'stopVoice',

                'uploadVoice', 'downloadVoice', 'chooseImage',

                'previewImage', 'uploadImage', 'downloadImage',

                'getNetworkType', 'openLocation', 'getLocation',

                'hideOptionMenu', 'showOptionMenu', 'hideMenuItems',

                'showMenuItems', 'hideAllNonBaseMenuItem',

                'showAllNonBaseMenuItem', 'closeWindow', 'scanQRCode',

                'previewFile', 'openEnterpriseChat',

                'selectEnterpriseContact','chooseInvoice'

                ], // 需要检测的JS接口列表，所有JS接口列表见附录2,

                success: function(res) {

                    // 以键值对的形式返回，可用的api值true，不可用为false

                    // 如：{"checkResult":{"chooseImage":true},"errMsg":"checkJsApi:ok"}

                }

        });

    });

    //2.2 上传图片

    var images = {

            localId : [],

            serverId : []

    };

    $("#uploadImg").click(function(){

        //2.2.1拍照或从手机相册中选图

        wx.chooseImage({

            success : function(res) {

                images.localId = res.localIds;

                alert('已选择 ' + res.localIds.length + ' 张图片');

                //2.2.2 上传图片

                uploadImg();

            }

        });

    });

    // 2.2.2 上传图片

    function uploadImg() {

        if (images.localId.length == 0) {

            alert('请先使用 chooseImage 接口选择图片');

            return;

        }

        var i = 0, length = images.localId.length;

        images.serverId = [];

        function upload() {

            wx.uploadImage({

                localId : images.localId[i],

                success : function(res) {

                    i++;

                    alert('已上传：' + i + '/' + length);

                    images.serverId.push(res.serverId);

                    //将serverId上传至服务器

                    alert("ajax请求即将执行--");

                    $.ajax({

                        type : "POST",

                        url : "http://se9mxs.natappfree.cc/weixin_gz/uploadimg",

                        data : {

                            serverId : res.serverId

                        },

                        dataType : "text",

                        success : function(data) {

                            alert(data);

                        }

                    });

                    if (i < length) {

                        upload();

                    }

                },

                fail : function(res) {

                    alert(JSON.stringify(res));

                }

            });

        }

        upload();

    };

    //2.3 扫一扫

    $("#qrcode").click(function(){

        wx.scanQRCode({

            needResult: 1, // 默认为0，扫描结果由微信处理，1则直接返回扫描结果，

            scanType: ["qrCode","barCode"], // 可以指定扫二维码还是一维码，默认二者都有

            success: function (res) {

                var result = res.resultStr; // 当needResult 为 1 时，扫码返回的结果

                alert(result);

            },

            fail:function (res) {

                var result = res.resultStr; // 当needResult 为 1 时，扫码返回的结果

                alert(result);

            }

        });

    });

    //2.4 拉起发票列表

    //注意，调用此接口时，config接口必须传入beta参数。

    $("#showInvoice").click(function(){

        alert("timestamp:"+invoice_config.timestamp);

        alert("nonceStr:"+invoice_config.nonceStr);

        alert("signType:"+invoice_config.signType);

        alert("cardSign:"+invoice_config.cardSign);

        wx.invoke('chooseInvoice', {

            'timestamp': invoice_config.timestamp, // 卡券签名时间戳

            'nonceStr' : invoice_config.nonceStr, // 卡券签名随机串

            'signType' : invoice_config.signType, // 签名方式，默认'SHA1'

            'cardSign' : invoice_config.cardSign, // 卡券签名

        }, function(res) {

            // 这里是回调函数

            alert("aaaaaa");

            alert(JSON.stringify(res)); // 返回的结果

        });

    });

});

//2.jsapi签名校验失败后执行error

wx.error(function(err){

    alert('wx error: ' + JSON.stringify(err));

    // config信息验证失败会执行error函数，如签名过期导致验证失败，具体错误信息可以打开config的debug模式查看，也可以在返回的res参数中查看，对于SPA可以在这里更新签名。

});

2.web.xml

<?xml version="1.0" encoding="UTF-8"?>

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">

  <display-name>weixin_gz</display-name>

  <welcome-file-list>

    <welcome-file>index.html</welcome-file>

    <welcome-file>index.htm</welcome-file>

    <welcome-file>index.jsp</welcome-file>

    <welcome-file>default.html</welcome-file>

    <welcome-file>default.htm</welcome-file>

    <welcome-file>default.jsp</welcome-file>

  </welcome-file-list>

  <!--微信公众号回调-->

    <servlet>

        <servlet-name>weixin</servlet-name>

        <servlet-class>com.ray.weixin.gz.controller.WeiXinServlet</servlet-class>

    </servlet>

    <servlet-mapping>

        <servlet-name>weixin</servlet-name>

        <url-pattern>/weixin</url-pattern>

    </servlet-mapping>

    <!-- 微信公众号回调-->

  <servlet>

    <description></description>

    <display-name>uploadimg</display-name>

    <servlet-name>uploadimg</servlet-name>

    <servlet-class>com.ray.weixin.gz.controller.UploadImgServlet</servlet-class>

  </servlet>

  <servlet-mapping>

    <servlet-name>uploadimg</servlet-name>

    <url-pattern>/uploadimg</url-pattern>

  </servlet-mapping>

</web-app>

3.上传图片servlet—UploadImgServlet

package com.ray.weixin.gz.controller;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.ray.weixin.gz.config.Env;

import com.ray.weixin.gz.service.tempmaterial.TempMaterialService;

import com.ray.weixin.gz.util.AuthHelper;

/**

 * Servlet implementation class UploadImgServlet

 */

public class UploadImgServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    /**

     * @see HttpServlet#HttpServlet()

     */

    public UploadImgServlet() {

        super();

        // TODO Auto-generated constructor stub

    }

    /**

     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

     */

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        // TODO Auto-generated method stub

        response.getWriter().append("Served at: ").append(request.getContextPath());

    }

    /**

     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)

     */

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        String mediaId=request.getParameter("serverId");

        System.out.println("serverId:"+mediaId);

        try {

            String accessToken=AuthHelper.getAccessToken(Env.APP_ID, Env.APP_SECRET);

            //String savePath=System.getProperty("user.dir").replaceAll("\\\\", "/")+"/WebContent/img/"+mediaId+".png";

            String fileDir=request.getSession().getServletContext().getRealPath("").replaceAll("\\\\", "/")+"/img/";

            System.out.println("fileDir:"+fileDir);

            //2.调用业务类，获取临时素材

            TempMaterialService.getTempMaterial(accessToken, mediaId, fileDir);

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        PrintWriter out = response.getWriter();

        out.print("HHHHHHHHHH");

        out.close();

        out = null;  

    }

}

4.素材管理业务类—TempMaterialService.java

package com.ray.weixin.gz.controller;

import java.io.IOException;

import java.io.PrintWriter;

import javax.servlet.ServletException;

import javax.servlet.http.HttpServlet;

import javax.servlet.http.HttpServletRequest;

import javax.servlet.http.HttpServletResponse;

import com.ray.weixin.gz.config.Env;

import com.ray.weixin.gz.service.tempmaterial.TempMaterialService;

import com.ray.weixin.gz.util.AuthHelper;

/**

 * Servlet implementation class UploadImgServlet

 */

public class UploadImgServlet extends HttpServlet {

    private static final long serialVersionUID = 1L;

    /**

     * @see HttpServlet#HttpServlet()

     */

    public UploadImgServlet() {

        super();

        // TODO Auto-generated constructor stub

    }

    /**

     * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)

     */

    protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        // TODO Auto-generated method stub

        response.getWriter().append("Served at: ").append(request.getContextPath());

    }

    /**

     * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)

     */

    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

        String mediaId=request.getParameter("serverId");

        System.out.println("serverId:"+mediaId);

        try {

            String accessToken=AuthHelper.getAccessToken(Env.APP_ID, Env.APP_SECRET);

            //String savePath=System.getProperty("user.dir").replaceAll("\\\\", "/")+"/WebContent/img/"+mediaId+".png";

            String fileDir=request.getSession().getServletContext().getRealPath("").replaceAll("\\\\", "/")+"/img/";

            System.out.println("fileDir:"+fileDir);

            //2.调用业务类，获取临时素材

            TempMaterialService.getTempMaterial(accessToken, mediaId, fileDir);

        } catch (Exception e) {

            // TODO Auto-generated catch block

            e.printStackTrace();

        }

        PrintWriter out = response.getWriter();

        out.print("HHHHHHHHHH");

        out.close();

        out = null;  

    }

}

其他的同上一节

码农公寓