在开发过程中,调用对外接口,返回了一长串的标签提示,如下

  1. <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
  2. <html><head>
  3. <meta type="copyright" content="Copyright (C) 1996-2017 The Squid Software Foundation and contributors">
  4. <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  5. <title>ERROR: The requested URL could not be retrieved</title>
  6. <style type="text/css"><!--
  7. /*
  8. * Copyright (C) 1996-2017 The Squid Software Foundation and contributors
  9. *
  10. * Squid software is distributed under GPLv2+ license and includes
  11. * contributions from numerous individuals and organizations.
  12. * Please see the COPYING and CONTRIBUTORS files for details.
  13. */
  14.  
  15. /*
  16. Stylesheet for Squid Error pages
  17. Adapted from design by Free CSS Templates
  18. http://www.freecsstemplates.org
  19. Released for free under a Creative Commons Attribution 2.5 License
  20. */
  21.  
  22. /* Page basics */
  23. * {
  24. font-family: verdana, sans-serif;
  25. }
  26.  
  27. html body {
  28. margin: 0;
  29. padding: 0;
  30. background: #efefef;
  31. font-size: 12px;
  32. color: #1e1e1e;
  33. }
  34.  
  35. /* Page displayed title area */
  36. #titles {
  37. margin-left: 15px;
  38. padding: 10px;
  39. padding-left: 100px;
  40. background: url('/squid-internal-static/icons/SN.png') no-repeat left;
  41. }
  42.  
  43. /* initial title */
  44. #titles h1 {
  45. color: #000000;
  46. }
  47. #titles h2 {
  48. color: #000000;
  49. }
  50.  
  51. /* special event: FTP success page titles */
  52. #titles ftpsuccess {
  53. background-color:#00ff00;
  54. width:100%;
  55. }
  56.  
  57. /* Page displayed body content area */
  58. #content {
  59. padding: 10px;
  60. background: #ffffff;
  61. }
  62.  
  63. /* General text */
  64. p {
  65. }
  66.  
  67. /* error brief description */
  68. #error p {
  69. }
  70.  
  71. /* some data which may have caused the problem */
  72. #data {
  73. }
  74.  
  75. /* the error message received from the system or other software */
  76. #sysmsg {
  77. }
  78.  
  79. pre {
  80. font-family:sans-serif;
  81. }
  82.  
  83. /* special event: FTP / Gopher directory listing */
  84. #dirmsg {
  85. font-family: courier;
  86. color: black;
  87. font-size: 10pt;
  88. }
  89. #dirlisting {
  90. margin-left: 2%;
  91. margin-right: 2%;
  92. }
  93. #dirlisting tr.entry td.icon,td.filename,td.size,td.date {
  94. border-bottom: groove;
  95. }
  96. #dirlisting td.size {
  97. width: 50px;
  98. text-align: right;
  99. padding-right: 5px;
  100. }
  101.  
  102. /* horizontal lines */
  103. hr {
  104. margin: 0;
  105. }
  106.  
  107. /* page displayed footer area */
  108. #footer {
  109. font-size: 9px;
  110. padding-left: 10px;
  111. }
  112.  
  113. body
  114. :lang(fa) { direction: rtl; font-size: 100%; font-family: Tahoma, Roya, sans-serif; float: right; }
  115. :lang(he) { direction: rtl; }
  116. --></style>
  117. </head><body id=ERR_ACCESS_DENIED>
  118. <div id="titles">
  119. <h1>ERROR</h1>
  120. <h2>The requested URL could not be retrieved</h2>
  121. </div>
  122. <hr>
  123.  
  124. <div id="content">
  125. <p>The following error was encountered while trying to retrieve the URL: <a href="https://cloud.zdns.cn/*">https://cloud.zdns.cn/*</a></p>
  126.  
  127. <blockquote id="error">
  128. <p><b>Access Denied.</b></p>
  129. </blockquote>
  130.  
  131. <p>Access control configuration prevents your request from being allowed at this time.
  132. Please contact your service provider if you feel this is incorrect.</p>
  133.  
  134. <p>Your cache administrator is
  135. <a href="mailto:webmaster?subject=CacheErrorInfo%20-%20ERR_ACCESS_DENIED&amp;
  136. body=CacheHost%3A%20xzproxy01%0D%0AErrPage%3A%20ERR_ACCESS_DENIED%0D%0AErr%3A%20%
  137. 5Bnone%5D%0D%0ATimeStamp%3A%20Fri,%2013%20Mar%202020%2002%3A56%3A20%20GMT%0D%0A%0D%
  138. 0AClientIP%3A%2010.49.9.125%0D%0A%0D%0AHTTP%20Request%3A%0D%0ACONNECT%20%2F%20HTTP%2F1.1%0
  139. AUser-Agent%3A%20Apache-HttpClient%2F4.5.2%20(Java%2F1.8.0_181)%0D%0AHost%3A%20cloud.zdns.c
  140. n%3A443%0D%0A%0D%0A%0D%0A">webmaster</a>.</p>
  141. <br>
  142. </div>
  143.  
  144. <hr>
  145. <div id="footer">
  146. <p>Generated Fri, 13 Mar 2020 02:56:20 GMT by xzproxy01 (squid/3.5.25)</p>
  147. <!-- ERR_ACCESS_DENIED -->
  148. </div>
  149. </body></html>

  该提示之后,发现请求不通,代理服务器拦截了这个请求,squid是代理服务器控制软件。在网上搜了下,看到一篇不错的文章,

链接如下,用于扩充吧

The requested URL could not be retrieved/ TCP_DENIED/403

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