很氣憤的一件事，我剛剛寫好的一篇博客，點擊提交時，博客園的程序報錯！白寫了！現在大家看到這篇是減縮版，代碼是可以使用的，只是有些解釋型語言，我不想在重復一遍了，希望博客園的管理者好好管理，不要再出現類似問題了。
使用jersey發布上傳圖片服務需要依賴兩個jar包：jersey-multiart.jar，mimepull.jar
前端html：
<form id="messageform" class="messagetable" enctype="multipart/form-data" method="post" > <div class="messagebody"> <textarea name="message" rows="5" cols="5" data-dojo-attach-point="messageNode"></textarea> <input type="hidden" name="ids" id="checkedids"> <input type="hidden" name="terminalid" id="terminalid"> </div> <input name="file" type="file" accept="image/*" single name="file" data-dojo-attach-point="fileNode" data-dojo-attach-event="onchange: onFileLoad"> <img data-dojo-attach-point="imgNode" src="" > <input type="submit" value="上傳圖片" data-dojo-attach-event="onclick:onUploadImg"> <input type="button" value="發送" data-dojo-attach-event="onclick:onSendMessage"> </form>
javascript：
uploadImg: function(form){ var myhostname = "http://" + window.location.hostname + ":" + window.location.port; var url = myhostname + "/TrackingSys/services/ConductControl/uploadImg"; form.ids = this.getStrIds(); console.log(form); iframe(url, { form: form, //url: url, method: 'POST', handleAs: "html" }).then(lang.hitch(this, 'uploadSuccess'), lang.hitch(this, 'err')); }, uploadSuccess: function(res){ var contentNode = res.childNodes[0]; if (contentNode){ var content = contentNode.textContent? contentNode.textContent : contentNode.innerText; var data = JSON.parse(content); console.log(data); } },
后台：注意返回的格式
@POST @Path("/uploadImg")
@Consumes(MediaType.MULTIPART_FORM_DATA) // 消費注解必須是這個類型
@Produces({ MediaType.APPLICATION_JSON, MediaType.APPLICATION_XML })
public String uploadImg(@FormDataParam("file") InputStream uploadedStream,
@FormDataParam("ids") String ids, @FormDataParam("terminalid") String terminalid){
String[] checkIds = ids.split(",");
String result = dao.sendImgToTerminal(terminalid, uploadedStream, checkIds);
String re = "<html>{\"result\":\"" + result + "\"}</html>";
return re;
}
插入圖片部分：不能使用被注釋掉的那種寫法
rpt = conn.prepareStatement(sql); BufferedInputStream bs = new BufferedInputStream(picData); ByteArrayOutputStream outputStream=new ByteArrayOutputStream(); byte[] bytes = new byte[1024]; int len=picData.read(bytes); while (len != -1) { outputStream.write(bytes, 0, len); len=picData.read(bytes); } rpt.setBytes(1, outputStream.toByteArray()); //rpt.setBinaryStream(1, picData,picData.available() ); rpt.setInt(2, imageId); rpt.executeUpdate();