é变成& 195;#169，然后变成é如何解决此编码问题?

问题描述

我在Eclipse中有一个Java文件，其格式为UTF-8，其中包含一些包含重音符号的字符串.

I have a java file in Eclipse that is in UTF-8 and has some strings containing accents.

在java文件本身中，重音被编写并保存为é.在使用速度生成的xml中，é变为é在使用fop和xsl模板生成的pdf中，输出显示为é

In the java file itself, the accent is written and saved as é .In the xml that is generated using velocity the é becomes éIn the pdf that is generated using fop and and an xsl template, the output is displayed as é

因此，这可能是编码问题，所有内容都应使用UTF-8.奇怪的是，在我运行应用程序的日食环境(Windows)中，整个过程正常进行，并且正确的重音é显示在pdf中.

So this is probably an encoding issue and everything should be in UTF-8. What's weird is that locally in my eclipse environment (windows) where I run the application, the whole process works and the correct accents é are displayed in the pdf.

但是，当使用maven构建应用程序并将其部署到(unix环境)时，我看到了上述问题.

However when the application is built with maven and deployed to a (unix environment) I see the problem described above.

推荐答案

也许Eclipse正在使用与Maven不同的javac命令行来编译文件.

Perhaps Eclipse is compiling the file with a different javac command line than Maven.

编译Java时，必须告诉编译器源文件的编码(如果它们包含非ASCII字符，并且默认设置不起作用).

When you compile Java, you have to tell the compiler the encoding of the source files (if they contain non-ASCII characters and the default doesn't work).

javac -encoding utf8 MyCode.java

我认为在Maven中解决此问题的方法是将其添加到您的pom.xml文件中:

I think the way to fix this in Maven is to add this to your pom.xml file:

<project>
  ...
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>
  ...
</project>

(我是从关于一个稍微不同的问题的Maven常见问题解答中获得的. )

您可以通过在Java文件中使用丑陋的Unicode转义序列来完全避免编码问题. é将成为\u00e9.对人类来说更糟，对烤面包机来说更容易. (正如Perlis所说，在人机共生中，必须由人来调整:机器不能."

You could instead avoid the encoding issue entirely by using ugly Unicode escape sequences in your Java file. é would become \u00e9. Worse for humans, easier for the toasters. (As Perlis said, "In man-machine symbiosis, it is man who must adjust: The machines can't.")

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