314 lines
11 KiB
HTML
314 lines
11 KiB
HTML
<#def title = "文件上传"/>
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<#def keyword = "ZhiqimUI"/>
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<#def desc = " 知启蒙文件上传提供了多种上传方法，支持表单上传、单文件上传，多文件上传，预览再上传等。"/>
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<#def prevUrl = "imageClipper.htm"/>
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<#def nextUrl = "uploadLarge.htm"/>
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${zhiqim_com_header()}
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${zhiqim_com_topnav("document")}
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<script>
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function doChange(tabnav)
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{
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doUpdateCode(Z(tabnav));
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}
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function doUpdateCode($this)
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{//更新代码
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var html = $this.find("section > div").htmlt();
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$this.find("section > div").next("div > span").html(html);
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}
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</script>
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<!--容器开始 -->
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<div id="container" class="container">
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<!--边导航-->
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${zhiqim_com_ui("tutorial", "ui", "tool", "upload")}
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<!--主体-->
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<div id="mainbody" class="mainbody">
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${zhiqim_com_breadcrumb("文库", "教程", "文件上传")}
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<div class="content">
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<#-- 标题 -->
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<div class="z-relative-left z-w100p z-pd16 z-bg-blue z-px18 z-lh200p z-bold" style="border-left:5px solid #2293e4">
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<p class="z-text-blue">文件上传：</p>
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<p class="z-color-333" style="text-indent:38px;">
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知启蒙文件上传提供了多种上传方法，支持表单上传、单文件上传，多文件上传，预览再上传等。
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</p>
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</div>
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<#-- 一、最简单文件上传 -->
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<div class="tutorial title">一、最简单文件上传</div>
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<div class="z-tabnav z-bordered" data-role="z-tabnav" onchange="doChange(this);">
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<nav>
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<ul class="zi-float-left">
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<li class="z-active">示例</li>
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<li>代码</li>
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<li>说明</li>
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</ul>
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</nav>
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<section style="min-height:150px;">
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<div class="z-active z-pd10 z-px16" style="padding-top:40px">
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<!-- 初始化上传控件 -->
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<script>
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Z.onload(function()
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{
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var upload = new Z.Upload();
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upload.contextPath = "${context.getContextPath()}";
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upload.elem = "ZUpload";
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upload.fileDir = "tutorial";
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upload.onCompleted = function(fileUrl){Z("#ZUploadCompleted").html("上传成功，URL：<a href='"+fileUrl+"' target='_blank'>"+fileUrl+"</a>");};
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upload.execute();
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});
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</script>
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<!-- 上传文件按钮 -->
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<button id="ZUpload" type="button" class="z-button z-blue z-w120">上传文件</button><br><br>
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<!-- 上传文件完成信息 -->
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<span id="ZUploadCompleted"></span>
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</div>
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<div class="z-relative-left z-w100p z-pd10">
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<span class="z-text-prewrap z-pre"></span>
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</div>
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<div class="z-pd10 z-px16 z-lh200p">
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1、最简文件上传，是初始化单个文件上传控件<br>
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2、参数只需要指定上传按钮id和上传成功事件onCompleted<br>
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3、在后台配置上下文环境属性upload.rootDir即可
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</div>
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</section>
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</div>
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<#-- 二、单文件上传（先预览后上传） -->
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<div class="tutorial title">二、单文件上传（先预览后上传）</div>
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<div class="z-tabnav z-bordered" data-role="z-tabnav" onchange="doChange(this);">
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<nav>
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<ul class="zi-float-left">
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<li class="z-active">示例</li>
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<li>代码</li>
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<li>说明</li>
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</ul>
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</nav>
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<section style="min-height:150px;">
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<div class="z-active z-pd10 z-px16" style="padding-top:40px">
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<!-- 初始化上传控件 -->
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<script>
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var uploadpreview = null;
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Z.onload(function()
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{
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uploadpreview = new Z.Upload();
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uploadpreview.contextPath = "${context.getContextPath()}";
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uploadpreview.elem = "ZUploadPreview";
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uploadpreview.fileDir = "tutorial";
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uploadpreview.onPreview = function(fileUrl){Z("#ZUploadPreviewLocation").html("<img src='"+fileUrl+"' style='max-width:80px;max-height:80px'>")};
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uploadpreview.onCompleted = function(fileUrl){Z("#ZUploadPreviewCompleted").html("上传成功，URL：<a href='"+fileUrl+"' target='_blank'>"+fileUrl+"</a>");};
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uploadpreview.execute();
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});
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function doUploadonePreview()
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{
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uploadpreview.upload();
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}
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</script>
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<!-- 上传文件预览 -->
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<div id="ZUploadPreviewLocation" class="z-w100p z-h80"></div>
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<!-- 上传文件按钮 -->
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<button id="ZUploadPreview" type="button" class="z-button z-blue z-w120">选择文件</button>
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<button id="ZUploadUpload" type="button" class="z-button z-w120" onclick="doUploadonePreview();">上传文件</button><br><br>
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<!-- 上传文件完成信息 -->
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<span id="ZUploadPreviewCompleted"></span>
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</div>
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<div class="z-relative-left z-w100p z-pd10">
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<span class="z-text-prewrap z-pre"></span>
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</div>
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<div class="z-pd10 z-px16 z-lh200p">
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1、最简文件上传，是初始化单个文件上传控件<br>
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2、参数只需要指定上传按钮id和上传成功事件onCompleted<br>
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3、在后台配置上下文环境属性upload.rootDir<br>
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4、如果需要分成两步，先预览后上传，则增加预览处理
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</div>
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</section>
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</div>
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<#-- 三、多文件上传（先预览后上传，默认图片） -->
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<div class="tutorial title">三、多文件上传（先预览后上传，默认图片）</div>
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<div class="z-tabnav z-bordered" data-role="z-tabnav" onchange="doChange(this);">
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<nav>
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<ul class="zi-float-left">
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<li class="z-active">示例</li>
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<li>代码</li>
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<li>说明</li>
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</ul>
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</nav>
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<section style="min-height:200px;">
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<div class="z-active z-pd10 z-px16" style="padding-top:40px">
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<!-- 初始化上传控件 -->
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<script>
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var uploadmultpreview = null;
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Z.onload(function()
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{
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uploadmultpreview = new Z.Uploadmult();
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uploadmultpreview.elem = "ZUploadmultPreview";
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uploadmultpreview.fileDir = "tutorial";
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uploadmultpreview.onPreview = function(results)
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{
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uploadmultpreview.buildPreviewHtml("ZUploadmultPreviewLocation");
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};
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uploadmultpreview.onCompleted = function(results)
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{
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var html = "";
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for (var i=0;i<results.length;i++){
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if (i != 0)
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html += "<br>";
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if (results[i].success)
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html += "上传成功，URL：<a href='"+results[i].success+"' target='_blank'>"+results[i].success+"</a>";
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else
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html += "上传失败，原因："+results[i].error;
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}
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Z("#ZUploadmultPreviewCompleted").html(html);
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};
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uploadmultpreview.execute();
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});
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function doUploadmultPreview()
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{
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uploadmultpreview.upload();
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}
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</script>
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<!-- 上传文件预览 -->
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<div id="ZUploadmultPreviewLocation" class="z-w100p z-h80"></div>
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<!-- 上传文件按钮 -->
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<div class="z-relative-left z-w100p">
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<button id="ZUploadmultPreview" class="z-button z-blue z-w120">选择文件</button>
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<button id="ZUploadmultUpload" class="z-button z-w120" onclick="doUploadmultPreview();">上传文件</button>
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</div>
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<!-- 上传文件完成信息 -->
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<div id="ZUploadmultPreviewCompleted" class="z-relative-left z-w100p z-mg10 z-lh150p"></div>
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</div>
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<div class="z-relative-left z-w100p z-pd10">
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<span class="z-text-prewrap z-pre"></span>
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</div>
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<div class="z-pd10 z-px16 z-lh200p">
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1、最简文件上传，是初始化多个文件上传控件<br>
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2、参数只需要指定上传按钮id和上传成功事件onCompleted<br>
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3、在后台配置上下文环境属性upload.rootDir<br>
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4、如果需要分成两步，先预览后上传，则增加预览处理
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</div>
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</section>
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</div>
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<#-- 四、表单文件上传，可以含参数 -->
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<div class="tutorial title">四、表单文件上传，可以含参数</div>
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<div class="z-tabnav z-bordered" data-role="z-tabnav" onchange="doChange(this);">
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<nav>
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<ul class="zi-float-left">
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<li class="z-active">示例</li>
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<li>代码</li>
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<li>说明</li>
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</ul>
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</nav>
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<section style="min-height:150px;">
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<div class="z-active z-pd10 z-px16 z-lh300p" style="padding-top:40px;">
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<!-- 表单文件上传 -->
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${Htmls.toCallFrame()}
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<form action="uploadForm.htm" method="post" enctype="multipart/form-data" data-role="z-call-frame">
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参数1：<input name="p1" class="z-input"><br>
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参数2：<input name="p2" class="z-input"><br>
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<button type="button" class="z-button z-blue z-w120" onclick="Z(this).next('input')[0].value=null;Z(this).next('input')[0].click();">选择文件</button>
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<input class="z-hide" type="file" name="file" accept="*.*" onchange="Z(this).next('span').text(this.value);" single>
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<span></span>
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<button type="submit" class="z-button">上传</button>
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</form>
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</div>
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<div class="z-relative-left z-w100p z-pd10">
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<span class="z-text-prewrap z-pre"></span>
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</div>
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<div class="z-pd10 z-px16 z-lh200p">
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1、表单文件上传的特点是支持参数一起传递，采用multipart/form-data格式<br>
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2、把真实的文件上传按钮隐藏起来（各浏览器表现不一样，太不美观），使用一个button代替<br>
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3、提供一个span用户显示文件选择的路径，这里也可以设计成预览<br>
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4、上传button，和提供一个Action处理数据。如下：
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<span class="z-text-prewrap z-pre">
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public class UploadFormAction implements Action, HttpdConstants
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{
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private static final Log log = LogFactory.getLog(UploadFormAction.class);
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@Override
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public void execute(HttpRequest request) throws Exception
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{
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String rootDir = request.getContextAttributeString(_SERV_UPLOAD_ROOT_DIR_);
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if (Validates.isEmptyBlank(rootDir) || !Files.mkDirectory(rootDir))
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{
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request.setAlertMsg("未配置上传目录，不支持上传");
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return;
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}
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HttpUploader uploader = new HttpUploader();
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try
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{//最大支持2M
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uploader.parseHttpRequest(request, 2*1024*1024);
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String fileExt = uploader.getFileExt();
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if(Validates.isEmpty(fileExt) || !Validates.isContain("jpg,png,gif", ",", fileExt))
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{
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request.setAlertMsg("仅支持图片，请重新上传");
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return;
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}
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//文件字节比较
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byte[] content = uploader.getBytes();
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if (!(Bytes.isGIZ(content) || Bytes.isPNG(content) || Bytes.isJPG(content)))
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{
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request.setAlertMsg("图片格式不正确，请重新上传");
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return;
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}
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//读出参数
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String param1 = uploader.getParameter("p1");
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String param2 = uploader.getParameter("p2");
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log.info("参数1："+param1+",参数2："+param2);
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//保存文件
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String fileDir = Strings.addEndsWith(Files.toLinuxPath(rootDir), "/");
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String fileName = Ids.longId() + "." + fileExt;
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uploader.writeToFile(fileDir + fileName);
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request.setAlertMsg("上传成功");
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}
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catch(Exception e)
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{
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request.setAlertMsg("上传失败");
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}
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finally
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{
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uploader.close();
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}
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}
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}
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</span>
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</div>
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</section>
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</div>
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${zhiqim_com_chapter()}
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</div>
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<!-- 主体结束 -->
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</div>
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<!-- 容器结束 -->
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</div>
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${zhiqim_com_footer()} |