Java 在批处理文件中下载带有wget的JDK安装程序

正如标题中所述，我正试图使用以下命令以批处理文件的形式下载jdk安装程序：

wget --verbose --show-progress --referer="https://download.oracle.com" --no-cookies --no-check-certificate --header "Cookie: oraclelicense=accept-securebackup-cookie" "https://download.oracle.com/otn-pub/java/jdk/15.0.1%2B9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe"

我从批处理文件中获得此错误：

--2021-01-05 15:12:30--  https://download.oracle.com/otn-pub/java/jdk/15.0.1B9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe
Resolving download.oracle.com (download.oracle.com)... 23.212.156.99
Connecting to download.oracle.com (download.oracle.com)|23.212.156.99|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://edelivery.oracle.com/otn-pub/java/jdk/15.0.1B9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe [following]
--2021-01-05 15:12:30--  https://edelivery.oracle.com/otn-pub/java/jdk/15.0.1B9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe
Resolving edelivery.oracle.com (edelivery.oracle.com)... 2a02:26f0:2b00:3b4::366, 2a02:26f0:2b00:390::366, 104.124.198.35
Connecting to edelivery.oracle.com (edelivery.oracle.com)|2a02:26f0:2b00:3b4::366|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://download.oracle.com/otn-pub/java/jdk/15.0.1B9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe?AuthParam=1609856056_4a223d45cbb97da535473401552470f5 [following]
--2021-01-05 15:12:31--  https://download.oracle.com/otn-pub/java/jdk/15.0.1B9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe?AuthParam=1609856056_4a223d45cbb97da535473401552470f5
Connecting to download.oracle.com (download.oracle.com)|23.212.156.99|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2021-01-05 15:12:32 ERROR 404: Not Found.

但是 当我在CLI中直接使用此命令行（更改wget.exe文件所在的CD）时，它会正确下载安装程序，如下所示：

--2021-01-05 15:19:43--  https://download.oracle.com/otn-pub/java/jdk/15.0.1%2B9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe
Resolving download.oracle.com (download.oracle.com)... 23.212.156.99
Connecting to download.oracle.com (download.oracle.com)|23.212.156.99|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://edelivery.oracle.com/otn-pub/java/jdk/15.0.1%2B9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe [following]
--2021-01-05 15:19:43--  https://edelivery.oracle.com/otn-pub/java/jdk/15.0.1%2B9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe
Resolving edelivery.oracle.com (edelivery.oracle.com)... 2a02:26f0:2b00:390::366, 2a02:26f0:2b00:3b4::366, 104.126.235.187
Connecting to edelivery.oracle.com (edelivery.oracle.com)|2a02:26f0:2b00:390::366|:443... connected.
HTTP request sent, awaiting response... 302 Moved Temporarily
Location: https://download.oracle.com/otn-pub/java/jdk/15.0.1+9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe?AuthParam=1609856489_c1f5f2310bf675762561de7d78160532 [following]
--2021-01-05 15:19:44--  https://download.oracle.com/otn-pub/java/jdk/15.0.1+9/51f4f36ad4ef43e39d0dfdbaf6549e32/jdk-15.0.1_windows-x64_bin.exe?AuthParam=1609856489_c1f5f2310bf675762561de7d78160532
Connecting to download.oracle.com (download.oracle.com)|23.212.156.99|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 167452312 (160M) [application/octet-stream]
Saving to: 'jdk-15.0.1_windows-x64_bin.exe'

我真的需要使用这个命令一个脚本

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如果有人知道批处理文件和CLI之间可能出现了什么问题，我将非常感谢您的帮助。

比较您输出的URL。
CLI URL包含一个百分号

%2B

，作为URL编码字母的一部分。但是批处理脚本输出缺少此百分号，因此导致错误的URL

• CLI输出

  15.0.1%2B9

• 批量输出

  15.0.1B9

因为批处理使用百分号

%

来标识变量，所以如果您想按字面意思使用它，就必须对其进行转义

---

因此，请尝试在批处理脚本中使用两个百分号

%%

。这应该会导致在你的URL中出现一个（正确的）单个

%

。

以防你不知道。它起作用了，我没有想到这个特定的%字符！谢谢你指出这一点，谢谢你的帮助！：）