Java JNLP 扩展无法在 Internet Explorer 中打开
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JNLP Extension does not open in Internet Explorer
提问by ballBreaker
I am having an issue of opening *.jnlp extensions using Internet Explorer. The extension opens properly in Chrome and Firefox, leading me to believe it is an issue with IE and possiblythe web server/JNLP configuration. Specifically, internet explorer opens the *.jnlp file as an *.xml script instead of downloading the file or opening it with java web start.
我在使用 Internet Explorer 打开 *.jnlp 扩展时遇到问题。该扩展程序在 Chrome 和 Firefox 中正确打开，让我相信这是 IE 的问题，也可能是 Web 服务器/JNLP 配置的问题。具体来说，Internet Explorer 将 *.jnlp 文件作为 *.xml 脚本打开，而不是下载文件或使用 java web start 打开它。
Example:
例子：
<?xml version="1.0" encoding="utf-8" ?>
- <!--
JNLP File for Downtime Registration Application
-->
- <jnlp spec="1.7+" codebase="http://foo:8080/bar" href="bar.jnlp">
- <information>
<title>FOO</title>
<vendor>FOO Inc.</vendor>
<description>FOO BAR System</description>
- <shortcut online="false">
<desktop />
<menu submenu="FOO" />
</shortcut>
</information>
- <security>
<all-permissions />
</security>
- <resources>
<j2se version="1.7+" java-vm-args="-client" />
...
</resources>
<application-desc main-class="FooBarMainApp" />
</jnlp>
I have tried the following "Fixes"/workarounds to no avail:
我尝试了以下“修复”/解决方法无济于事：
- Run IE as Administrator
- Adding URL to compatibility view
- Changing JAVA settings to "Always allow JNLP/MIME"
- Reset internet explorer advanced settings
- Change the MIME extension settings in the web.xml file of the web server
- Change IE setting to always allow file downloads
- 以管理员身份运行 IE
- 将 URL 添加到兼容性视图
- 将 JAVA 设置更改为“始终允许 JNLP/MIME”
- 重置 Internet Explorer 高级设置
- 更改 Web 服务器的 web.xml 文件中的 MIME 扩展设置
- 更改 IE 设置以始终允许文件下载
Update:I was able to fix this issue with the workaround I posted below. However, I am looking for a more permanent fix if anyone has suggestions. Specifically, I am looking for a way to fix this on the business/server side if at all possible. It would be nice if the users didn't need to change any settings on their side (other then switching from IE to a different browser).
更新：我能够使用我在下面发布的解决方法解决此问题。但是，如果有人有建议，我正在寻找更永久的修复方法。具体来说，如果可能的话，我正在寻找一种在业务/服务器端解决此问题的方法。如果用户不需要更改他们这边的任何设置（然后从 IE 切换到不同的浏览器），那就太好了。
MIME-Mapping in web.xml:
web.xml 中的 MIME 映射：
<mime-mapping>
<extension>jnlp</extension>
<mime-type>application/x-java-jnlp-file</mime-type>
</mime-mapping>
采纳答案by ballBreaker
I ended up fixing this problem by changing a specific setting within Internet Explorer.
我最终通过更改 Internet Explorer 中的特定设置解决了这个问题。
Tools -> Internet Options -> Security -> Custom Level... -> Miscellaneous -> Enable MIME Sniffing- > Disable
工具 -> Internet 选项 -> 安全 -> 自定义级别... -> 其他 -> 启用 MIME 嗅探 ->禁用
It took me a while to find this fix, so I'm including it here in case anyone else has this issue as well.
我花了一段时间才找到此修复程序，因此我将其包含在此处，以防其他人也遇到此问题。
PS: This is more of a workaround then a permanent fix. Any additional insight would be helpful.
PS：这更像是一种解决方法，而不是永久性修复。任何额外的见解都会有所帮助。
Update: Ended up adding <%@ page contentType="application/x-java-jnlp-file" %>to the beginning of the JNLP file and then building the war. Essentially the JNLP would automatically launch but give a parsing error. Once this line was then taken out of the JNLP and the WAR was re-built, the JNLP would launch javawebstart and the parsing error was gone (AKA Problem Solved). Don't really know why, but this magicseemed to work.
更新：最终将<%@ page contentType="application/x-java-jnlp-file" %> 添加到 JNLP 文件的开头，然后构建战争。本质上，JNLP 会自动启动，但会出现解析错误。一旦这条线从 JNLP 中取出并重新构建 WAR，JNLP 将启动 javawebstart 并且解析错误消失（AKA Problem Solved）。不知道为什么，但这种魔法似乎奏效了。
回答by Jose Manuel Gomez Alvarez
I store my JWS application out of the EAR/WAR, along with all signed libraries.
我将我的 JWS 应用程序以及所有签名库存储在 EAR/WAR 之外。
If the JWS application is hosted in an Apache web server, in httpd.conf, you can add the type as follows:
如果 JWS 应用程序托管在 Apache Web 服务器中，则可以在 httpd.conf 中添加类型，如下所示：
AddType application/x-java-jnlp-file .jnlp
Reference here: http://httpd.apache.org/docs/current/mod/mod_mime.html
参考这里：http: //httpd.apache.org/docs/current/mod/mod_mime.html
回答by Zakaria
JNLP issue could be fixed by following the steps below:
JNLP 问题可以通过以下步骤修复：
- Open Mozilla Firefox and then download the JNLP extention.
Mozilla Asked me how to open it, I chose Open with javaws (on
C:\Program Files\Java\jre1.8.0_161\lib). - Choose apply this choice from now on.
- 打开 Mozilla Firefox，然后下载 JNLP 扩展。Mozilla 问我怎么打开，我选择Open with javaws（上
C:\Program Files\Java\jre1.8.0_161\lib）。 - 从现在开始选择应用此选择。
I tried to open it on Internet explorer and it worked automatically.
我尝试在 Internet Explorer 上打开它，它自动运行。
Or from Dowloaded file click right on JNLP extention file, open with javaws (on C:\Program Files\Java\jre1.8.0_161\lib). I did not try this one but i think it should work.
或者从下载的文件中右键单击 JNLP 扩展文件，使用 javaws 打开（在 上C:\Program Files\Java\jre1.8.0_161\lib）。我没有尝试过这个，但我认为它应该有效。
