js10.html 9.2 KB

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  1. <!doctype html>
  2. <html>
  3. <head>
  4. <meta charset="utf-8">
  5. <title></title>
  6. <meta name="viewport" content="width=device-width,initial-scale=1,user-scalable=0">
  7. <link rel="stylesheet" href="../style/weui.css"/>
  8. <link rel="stylesheet" href="../style/weui2.css"/>
  9. <link rel="stylesheet" href="../style/weui3.css"/>
  10. <script src="../zepto.min.js"></script><script src="../lrz.min.js"></script>
  11. <script>
  12. $(function(){
  13. });
  14. </script>
  15. </head>
  16. <body ontouchstart style="background-color: #f8f8f8;">
  17. <div class="page-hd">
  18. <h1 class="page-hd-title">
  19. 图片压缩上传
  20. </h1>
  21. <p class="page-hd-desc">需要加载lrz.min.js,这个插件可以压缩大图片为设定宽度图片,上传速度极快,原理是先压缩图片,然后转换成base64上传,目前比较好用的;如果是微信内,对于少量图片,建议采用jssdk</p>
  22. </div>
  23. <div class="weui_cells weui_cells_form">
  24. <div class="weui_cell">
  25. <div class="weui_cell_bd weui_cell_primary">
  26. <div class="weui_uploader">
  27. <div class="weui_uploader_hd weui_cell">
  28. <div class="weui_cell_bd weui_cell_primary">单图片压缩上传</div>
  29. <div class="weui_cell_ft"></div>
  30. </div>
  31. <div class="weui_uploader_bd">
  32. <ul class="weui_uploader_files" id='img'>
  33. </ul>
  34. <div class="weui_uploader_input_wrp">
  35. <input class="weui_uploader_input" type="file" accept="image/jpg,image/jpeg,image/png,image/gif" id="headimgurl" />
  36. <input type="hidden" id="headimgurl1" />
  37. </div>
  38. </div>
  39. </div>
  40. </div>
  41. </div>
  42. <div class="weui_cell">
  43. <div class="weui_cell_bd weui_cell_primary">
  44. <div class="weui_uploader">
  45. <div class="weui_uploader_hd weui_cell">
  46. <div class="weui_cell_bd weui_cell_primary">多图先压缩后上传</div>
  47. <div class="weui_cell_ft"></div>
  48. </div>
  49. <div class="weui_uploader_bd">
  50. <ul class="weui_uploader_files" id='img2'>
  51. </ul>
  52. <div class="weui_uploader_input_wrp" id="file2">
  53. <input class="weui_uploader_input" type="file" accept="image/jpg,image/jpeg,image/png,image/gif" id='headimgurl2' multiple />
  54. </div>
  55. </div>
  56. </div>
  57. </div>
  58. </div>
  59. </div>
  60. <div class="weui_cell">
  61. <div class="weui_cell_bd weui_cell_primary">
  62. <div class="weui_uploader">
  63. <div class="weui_uploader_hd weui_cell">
  64. <div class="weui_cell_bd weui_cell_primary">单图片不压缩上传</div>
  65. <div class="weui_cell_ft"></div>
  66. </div>
  67. <div class="weui_uploader_bd">
  68. <ul class="weui_uploader_files" id='img1'>
  69. </ul>
  70. <div class="weui_uploader_input_wrp">
  71. <input class="weui_uploader_input" type="file" accept="image/jpg,image/jpeg,image/png,image/gif" id="i1" onchange="previewImage(this)"/>
  72. <input type="hidden" id="i4" />
  73. </div>
  74. </div>
  75. </div>
  76. </div>
  77. </div>
  78. <div class="weui_cell">
  79. <div class="weui_cell_bd weui_cell_primary">
  80. <div class="weui_uploader">
  81. <div class="weui_uploader_hd weui_cell">
  82. <div class="weui_cell_bd weui_cell_primary">多图不压缩上传</div>
  83. <div class="weui_cell_ft"></div>
  84. </div>
  85. <div class="weui_uploader_bd">
  86. <ul class="weui_uploader_files" id='img2x'>
  87. </ul>
  88. <div class="weui_uploader_input_wrp">
  89. <input class="weui_uploader_input" type="file" accept="image/jpg,image/jpeg,image/png,image/gif" onchange="previewImage1(this)" multiple />
  90. </div>
  91. </div>
  92. </div>
  93. </div>
  94. </div>
  95. <script>
  96. function previewImage(file) {
  97. var MAXWIDTH = 100;
  98. var MAXHEIGHT = 200;
  99. if (file.files && file.files[0]) {
  100. var reader = new FileReader();
  101. reader.onload = function (evt) {
  102. $('#img1').html('<li class="weui_uploader_file" style="background-image:url('+evt.target.result+')"></li>');
  103. };
  104. reader.readAsDataURL(file.files[0]);//
  105. console.log(file.files[0]);
  106. }
  107. }
  108. function previewImage1(file) {
  109. var MAXWIDTH = 100;
  110. var MAXHEIGHT = 200;
  111. for(var i=0;i<file.files.length;i++){
  112. if (file.files && file.files[i]) {
  113. var reader = new FileReader();
  114. reader.onload = function (evt) {
  115. $('#img2x').append('<li class="weui_uploader_file" style="background-image:url('+evt.target.result+')"></li>');
  116. };
  117. reader.readAsDataURL(file.files[i]);
  118. }
  119. }
  120. }
  121. $(function(){
  122. var f = document.querySelector('#headimgurl');
  123. f.onchange = function () {
  124. lrz(this.files[0],{width:640,fieldName:"file"}).then(function (rst) {
  125. var xhr = new XMLHttpRequest();
  126. xhr.open('POST', '1.php');
  127. xhr.onload = function () {
  128. if (xhr.status === 200) {
  129. var obj = eval('(' + xhr.responseText + ')');
  130. $('#img').html('<li onclick="var delimg=$(this);$.confirm(\'您确定要删除吗?\', \'确认删除?\', function() {delimg.remove();},function(){$.toast(\'取消操作\', \'cancel\');});" class="weui_uploader_file weui_uploader_status" style="background-image:url('+obj.src+')"><div class="weui_uploader_status_content"><i class="weui_icon_cancel"></i></div></li>');
  131. $("#headimgurl1").val(obj.src);
  132. } else {
  133. // 处理其他情况
  134. }
  135. };
  136. xhr.onerror = function () {
  137. // 处理错误
  138. };
  139. xhr.upload.onprogress = function (e) {
  140. // 上传进度
  141. var percentComplete = ((e.loaded / e.total) || 0) * 100;
  142. }
  143. // 添加参数
  144. rst.formData.append('size', rst.fileLen);
  145. rst.formData.append('base64', rst.base64);
  146. // 触发上传
  147. xhr.send(rst.formData);
  148. return rst;
  149. })
  150. .catch(function (err) {
  151. alert(err);
  152. })
  153. .always(function () {// 不管是成功失败,这里都会执行
  154. });
  155. }
  156. //多图上传
  157. var f2 = document.querySelector('#headimgurl2');
  158. f2.onchange = function (e) {
  159. var files = e.target.files;
  160. var len = files.length;
  161. for (var i=0; i < len; i++) {
  162. lrz(files[i],{width:640,fieldName:"file1"}).then(function (rst) {
  163. var xhr = new XMLHttpRequest();
  164. xhr.open('POST', '2.php');
  165. xhr.onload = function () {
  166. if (xhr.status === 200) {
  167. var obj = eval('(' + xhr.responseText + ')');
  168. $('#img2').append('<li onclick="var delimg=$(this);$.confirm(\'您确定要删除吗?\', \'确认删除?\', function() {delimg.remove();},function(){$.toast(\'取消操作\', \'cancel\');});" class="weui_uploader_file weui_uploader_status" style="background-image:url('+obj.src+')"><div class="weui_uploader_status_content"><i class="weui_icon_cancel"></i></div></li>');
  169. $('#file2').append('<input value="'+obj.src+'" type="hidden" name="files" />');
  170. } else {
  171. // 处理其他情况
  172. }
  173. };
  174. xhr.onerror = function () {
  175. // 处理错误
  176. };
  177. xhr.upload.onprogress = function (e) {
  178. // 上传进度
  179. var percentComplete = ((e.loaded / e.total) || 0) * 100;
  180. };
  181. // 添加参数
  182. rst.formData.append('size', rst.fileLen);
  183. rst.formData.append('base64', rst.base64);
  184. // 触发上传
  185. xhr.send(rst.formData);
  186. return rst;
  187. })
  188. .catch(function (err) {
  189. alert(err);
  190. })
  191. .always(function () {// 不管是成功失败,这里都会执行
  192. });
  193. }//for end
  194. }
  195. })
  196. </script>
  197. </body>
  198. </html>