diyupload插件：批量图片上传

来源：互联网发布：linux edonkey 编辑：程序博客网时间：2024/05/22 16:58

1、引入文件插件
2、对div控件重写（插件实现）

<code class="hljs javascript has-numbering"><span class="hljs-comment">// 初始化上传图片插件</span>    $(<span class="hljs-string">'#upload_bottom1'</span>).diyUpload({        url : <span class="hljs-string">'fileUploadAction'</span>,        success : <span class="hljs-function"><span class="hljs-keyword">function</span><span class="hljs-params">(data)</span> {</span>            $.ajax({                async : <span class="hljs-literal">false</span>,                url : <span class="hljs-string">"addProductImg"</span>,                data : {                    prodId : prodId,                    imgUrl : data.message,                    type : <span class="hljs-number">1</span>,                    sort : <span class="hljs-number">1</span>                },                dataType : <span class="hljs-string">"JSON"</span>,                type : <span class="hljs-string">"POST"</span>,                success : <span class="hljs-function"><span class="hljs-keyword">function</span><span class="hljs-params">(result)</span> {</span>                    <span class="hljs-keyword">if</span> (result > <span class="hljs-number">0</span>) {                        getPic(<span class="hljs-number">1</span>);                    }                }            });        },        error : <span class="hljs-function"><span class="hljs-keyword">function</span><span class="hljs-params">(err)</span> {</span>            alert(err);        },        buttonText : <span class="hljs-string">'选择文件'</span>,        chunked : <span class="hljs-literal">true</span>,        <span class="hljs-comment">// 分片大小</span>        chunkSize : <span class="hljs-number">512</span> * <span class="hljs-number">1024</span>,        <span class="hljs-comment">// 最大上传的文件数量, 总文件大小,单个文件大小(单位字节);</span>        fileNumLimit : <span class="hljs-number">50</span>,        fileSizeLimit : <span class="hljs-number">500000</span> * <span class="hljs-number">1024</span>,        fileSingleSizeLimit : <span class="hljs-number">50000</span> * <span class="hljs-number">1024</span>,        accept : {}    });</code><ul style="" class="pre-numbering"><li>1</li><li>2</li><li>3</li><li>4</li><li>5</li><li>6</li><li>7</li><li>8</li><li>9</li><li>10</li><li>11</li><li>12</li><li>13</li><li>14</li><li>15</li><li>16</li><li>17</li><li>18</li><li>19</li><li>20</li><li>21</li><li>22</li><li>23</li><li>24</li><li>25</li><li>26</li><li>27</li><li>28</li><li>29</li><li>30</li><li>31</li><li>32</li><li>33</li><li>34</li><li>35</li></ul>

//点击上传后执行：
这里写图片描述

/////分析：执行了两个操作：
（1）、上传图片都服务器：fileUploadAction
////相应：
这里写图片描述
//stucts拦截请求，

<code class="hljs applescript has-numbering"><action <span class="hljs-property">name</span>=<span class="hljs-string">"fileUploadAction"</span> <span class="hljs-type">class</span>=<span class="hljs-string">"yamadv.com.upload.FileAction"</span>>               <<span class="hljs-constant">result</span> type=<span class="hljs-string">"json"</span> <span class="hljs-property">name</span>=<span class="hljs-string">"success"</span>>                   <param <span class="hljs-property">name</span>=<span class="hljs-string">"contentType"</span>>                       <span class="hljs-type">text</span>/html                   </param>               </<span class="hljs-constant">result</span>>               <<span class="hljs-constant">result</span> type=<span class="hljs-string">"json"</span> <span class="hljs-property">name</span>=<span class="hljs-string">"error"</span>>                   <param <span class="hljs-property">name</span>=<span class="hljs-string">"contentType"</span>>                       <span class="hljs-type">text</span>/html                   </param>               </<span class="hljs-constant">result</span>>        </action></code><ul style="" class="pre-numbering"><li>1</li><li>2</li><li>3</li><li>4</li><li>5</li><li>6</li><li>7</li><li>8</li><li>9</li><li>10</li><li>11</li><li>12</li></ul>

//到action中执行，后返回数据：

<code class="hljs java has-numbering"><span class="hljs-keyword">public</span> String <span class="hljs-title">execute</span>() <span class="hljs-keyword">throws</span> Exception {        String path = ServletActionContext.getServletContext().getRealPath(<span class="hljs-string">"/upload"</span>);        String pathuri = ServletActionContext.getRequest().getContextPath();        FileInputStream inputStream=<span class="hljs-keyword">null</span>;        FileOutputStream outputStream=<span class="hljs-keyword">null</span>;        <span class="hljs-keyword">try</span> {            File f = <span class="hljs-keyword">this</span>.getFile();            <span class="hljs-keyword">if</span> (<span class="hljs-keyword">this</span>.getFileFileName().endsWith(<span class="hljs-string">".exe"</span>)) {                message = <span class="hljs-string">"对不起,你上传的文件格式不允许!!!"</span>;                <span class="hljs-keyword">return</span> ERROR;            }            inputStream = <span class="hljs-keyword">new</span> FileInputStream(f);            String s = DateParse.date4String(<span class="hljs-keyword">new</span> Date());            fileFileName = s + <span class="hljs-keyword">this</span>.getFileFileName();            outputStream = <span class="hljs-keyword">new</span> FileOutputStream(path + <span class="hljs-string">"/"</span>                    + fileFileName);            <span class="hljs-keyword">byte</span>[] buf = <span class="hljs-keyword">new</span> <span class="hljs-keyword">byte</span>[<span class="hljs-number">1024</span>];            <span class="hljs-keyword">int</span> length = <span class="hljs-number">0</span>;            <span class="hljs-keyword">while</span> ((length = inputStream.read(buf)) != -<span class="hljs-number">1</span>) {                outputStream.write(buf, <span class="hljs-number">0</span>, length);            }            <span class="hljs-comment">//message = pathuri + "/upload/" + fileFileName;</span>            message = <span class="hljs-string">"/upload/"</span> + fileFileName;        } <span class="hljs-keyword">catch</span> (Exception e) {            e.printStackTrace();            message = <span class="hljs-string">"对不起,文件上传失败了!!!!"</span>;        }<span class="hljs-keyword">finally</span>{            outputStream.flush();            inputStream.close();            outputStream.close();        }        <span class="hljs-keyword">return</span> SUCCESS;    }</code><ul style="" class="pre-numbering"><li>1</li><li>2</li><li>3</li><li>4</li><li>5</li><li>6</li><li>7</li><li>8</li><li>9</li><li>10</li><li>11</li><li>12</li><li>13</li><li>14</li><li>15</li><li>16</li><li>17</li><li>18</li><li>19</li><li>20</li><li>21</li><li>22</li><li>23</li><li>24</li><li>25</li><li>26</li><li>27</li><li>28</li><li>29</li><li>30</li><li>31</li><li>32</li><li>33</li><li>34</li><li>35</li><li>36</li></ul>

（2）、将数据add进数据库中：返回json数据：1232

<code class="hljs java has-numbering"><span class="hljs-javadoc">/**     * 添加商品图片     */</span>    <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">addProductImg</span>() {        <span class="hljs-keyword">int</span> prodId = Integer.parseInt(<span class="hljs-keyword">this</span>.getRequest().getParameter(<span class="hljs-string">"prodId"</span>));        String imgUrl = <span class="hljs-keyword">this</span>.getRequest().getParameter(<span class="hljs-string">"imgUrl"</span>);        <span class="hljs-keyword">int</span> type = Integer.parseInt(<span class="hljs-keyword">this</span>.getRequest().getParameter(<span class="hljs-string">"type"</span>));        <span class="hljs-keyword">int</span> sort = Integer.parseInt(<span class="hljs-keyword">this</span>.getRequest().getParameter(<span class="hljs-string">"sort"</span>));        Tproducyimg pimg = <span class="hljs-keyword">new</span> Tproducyimg();        pimg.setType(type);        pimg.setImgUrl(imgUrl);        pimg.setProdId(prodId);        pimg.setIsValid(<span class="hljs-keyword">true</span>);        pimg.setSort(sort);        <span class="hljs-keyword">int</span> result = <span class="hljs-keyword">this</span>.productImgService.addProductImg(pimg);        <span class="hljs-keyword">if</span> (result > <span class="hljs-number">0</span>) {            MSG = <span class="hljs-string">"OK"</span>;        } <span class="hljs-keyword">else</span> {            MSG = <span class="hljs-string">"NO"</span>;        }        <span class="hljs-keyword">this</span>.writeJson(result);    }</code><ul style="" class="pre-numbering"><li>1</li><li>2</li><li>3</li><li>4</li><li>5</li><li>6</li><li>7</li><li>8</li><li>9</li><li>10</li><li>11</li><li>12</li><li>13</li><li>14</li><li>15</li><li>16</li><li>17</li><li>18</li><li>19</li><li>20</li><li>21</li><li>22</li><li>23</li><li>24</li><li>25</li></ul>

action补充：如何相应请求到前台：

<code class="hljs java has-numbering"><span class="hljs-annotation">@Component</span>(value=<span class="hljs-string">"baseAction"</span>)<span class="hljs-keyword">public</span> <span class="hljs-keyword">abstract</span> <span class="hljs-class"><span class="hljs-keyword">class</span> <span class="hljs-title">BaseAction</span> <span class="hljs-keyword">extends</span> <span class="hljs-title">ActionSupport</span> <span class="hljs-keyword">implements</span> <span class="hljs-title">ServletRequestAware</span> {</span>    <span class="hljs-keyword">private</span> <span class="hljs-keyword">static</span> <span class="hljs-keyword">final</span> <span class="hljs-keyword">long</span> serialVersionUID = -<span class="hljs-number">6604674795899991348</span>L;    <span class="hljs-keyword">private</span> HttpServletRequest request;    <span class="hljs-keyword">private</span> HttpSession session;    <span class="hljs-annotation">@SuppressWarnings</span>(<span class="hljs-string">"unused"</span>)    <span class="hljs-keyword">private</span> ServletConfig config;    <span class="hljs-keyword">public</span> ServletConfig <span class="hljs-title">getConfig</span>(){        <span class="hljs-keyword">return</span> <span class="hljs-keyword">this</span>.config = (ServletConfig)request.getSession().getServletContext().getAttribute(<span class="hljs-string">"servletConfig"</span>);     }    <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setConfig</span>(ServletConfig config) {        <span class="hljs-keyword">this</span>.config = config;    }    <span class="hljs-annotation">@Override</span>    <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setServletRequest</span>(HttpServletRequest arg0) {        <span class="hljs-comment">// TODO Auto-generated method stub</span>        <span class="hljs-keyword">this</span>.request=arg0;        <span class="hljs-keyword">this</span>.session=<span class="hljs-keyword">this</span>.request.getSession();<span class="hljs-comment">//get session for client</span>    }    <span class="hljs-keyword">public</span> HttpServletRequest <span class="hljs-title">getRequest</span>() {        <span class="hljs-keyword">return</span> request;    }    <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setRequest</span>(HttpServletRequest request) {        <span class="hljs-keyword">this</span>.request = request;    }    <span class="hljs-keyword">public</span> HttpSession <span class="hljs-title">getSession</span>() {        <span class="hljs-keyword">return</span> session;    }    <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">setSession</span>(HttpSession session) {        <span class="hljs-keyword">this</span>.session = session;    }    <span class="hljs-javadoc">/**     * 获得response     *      *<span class="hljs-javadoctag"> @return</span>     */</span>    <span class="hljs-keyword">public</span> HttpServletResponse <span class="hljs-title">getResponse</span>() {        <span class="hljs-keyword">return</span> ServletActionContext.getResponse();    }    <span class="hljs-javadoc">/**     * 将对象转换成JSON字符串，并响应回前台     *      *<span class="hljs-javadoctag"> @param</span> object     *<span class="hljs-javadoctag"> @param</span> includesProperties     *            需要转换的属性     *<span class="hljs-javadoctag"> @param</span> excludesProperties     *            不需要转换的属性     */</span>    <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">writeJsonByFilter</span>(Object object, String[] includesProperties, String[] excludesProperties) {        <span class="hljs-keyword">try</span> {            FastjsonFilter filter = <span class="hljs-keyword">new</span> FastjsonFilter();<span class="hljs-comment">// excludes优先于includes</span>            <span class="hljs-keyword">if</span> (excludesProperties != <span class="hljs-keyword">null</span> && excludesProperties.length > <span class="hljs-number">0</span>) {                filter.getExcludes().addAll(Arrays.<String> asList(excludesProperties));            }            <span class="hljs-keyword">if</span> (includesProperties != <span class="hljs-keyword">null</span> && includesProperties.length > <span class="hljs-number">0</span>) {                filter.getIncludes().addAll(Arrays.<String> asList(includesProperties));            }            String json;            String User_Agent = getRequest().getHeader(<span class="hljs-string">"User-Agent"</span>);            <span class="hljs-keyword">if</span> (StringUtils.indexOfIgnoreCase(User_Agent, <span class="hljs-string">"MSIE 6"</span>) > -<span class="hljs-number">1</span>) {                <span class="hljs-comment">// 使用SerializerFeature.BrowserCompatible特性会把所有的中文都会序列化为\\uXXXX这种格式，字节数会多一些，但是能兼容IE6</span>                json = JSON.toJSONString(object, filter, SerializerFeature.WriteDateUseDateFormat, SerializerFeature.DisableCircularReferenceDetect, SerializerFeature.BrowserCompatible);            } <span class="hljs-keyword">else</span> {                <span class="hljs-comment">// 使用SerializerFeature.WriteDateUseDateFormat特性来序列化日期格式的类型为yyyy-MM-dd hh24:mi:ss</span>                <span class="hljs-comment">// 使用SerializerFeature.DisableCircularReferenceDetect特性关闭引用检测和生成</span>                json = JSON.toJSONString(object, filter, SerializerFeature.WriteDateUseDateFormat, SerializerFeature.DisableCircularReferenceDetect);            }            getResponse().setContentType(<span class="hljs-string">"text/html;charset=utf-8"</span>);            getResponse().getWriter().write(json);            getResponse().getWriter().flush();            getResponse().getWriter().close();        } <span class="hljs-keyword">catch</span> (IOException e) {            e.printStackTrace();        }    }    <span class="hljs-javadoc">/**     * 将对象转换成JSON字符串，并响应回前台     *      *<span class="hljs-javadoctag"> @param</span> object     *<span class="hljs-javadoctag"> @throws</span> IOException     */</span>    <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">writeJson</span>(Object object) {        writeJsonByFilter(object, <span class="hljs-keyword">null</span>, <span class="hljs-keyword">null</span>);    }    <span class="hljs-javadoc">/**     * 将对象转换成JSON字符串，并响应回前台     *      *<span class="hljs-javadoctag"> @param</span> object     *<span class="hljs-javadoctag"> @param</span> includesProperties     *            需要转换的属性     */</span>    <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">writeJsonByIncludesProperties</span>(Object object, String[] includesProperties) {        writeJsonByFilter(object, includesProperties, <span class="hljs-keyword">null</span>);    }    <span class="hljs-javadoc">/**     * 将对象转换成JSON字符串，并响应回前台     *      *<span class="hljs-javadoctag"> @param</span> object     *<span class="hljs-javadoctag"> @param</span> excludesProperties     *            不需要转换的属性     */</span>    <span class="hljs-keyword">public</span> <span class="hljs-keyword">void</span> <span class="hljs-title">writeJsonByExcludesProperties</span>(Object object, String[] excludesProperties) {        writeJsonByFilter(object, <span class="hljs-keyword">null</span>, excludesProperties);    }}</code>

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