![在java中输出为UTF]( "在java中输出为UTF")
本文介绍了在java中输出为UTF-8编码的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我使用eclipse将程序中的输出文件出现问题.i将我的eclipse设置为UTF-8，并使用
System.getProperty（file.encoding）
我得到UTF-8.i运行我的程序通过eclipse运行选项和输出（文本文件）以UTF-8编码。但是当我将源代码压缩到一个jar文件中时，输出文件会在某些字母表中显示错误，如Ã.what就是这个diff当在eclipse和frm jar文件中删除prog时，我必须在我的源代码中指定要在utf-8中编码的输出？pls help。
help从@dacwe确实产生了所需的输出。但是我可以知道如何在命令行外运行我的可执行文件.jar文件？如何-Dfile.encoding = UTF-8
@dacwe：我尝试将源代码更改为
BufferedWriter bout = new java.io.BufferedWriter（new java.io .OutputStreamWriter（
new java.io.FileOutputStream（filename），UTF- 8\" ））;
但是输出仍然没有正确编码。我想念这些东西？
@ div class =h2_lin>解决方案在@Dave G的回答中进行了一些主要讨论后，
使用 java -Dfile.encoding = UTF-8 -jar your-jar-file.jar 。
将代码更新为@Dave G建议（和你的编辑）应该工作。
- 您是否真的重新包装了您的罐子？
- 您是否致电
close （）在 bout ？ （例如，可能您的文件未更新）
这是一个完整的例子可能会让你走：
public static void main（String ... args）throws Exception {
PrintWriter out =新的PrintWriter（新文件（hello.txt），UTF-8）;
out.print（用utf-8写）;
out.close（）;
}
I am having problem with the output file from a program using eclipse .i set my eclipse to UTF-8 and with
System.getProperty("file.encoding")
i get UTF-8.i ran my prog via eclipse run-option and the output (a text file) is encoded in UTF-8.but when i compressed the source code into a jar file,the output file shows error in some of the alphabet like Ã.what is with this diff when ruuning the prog in eclipse and frm jar file?and do i have to specify the output to be encoded in utf-8 in my source code?pls help.
help from @dacwe indeed produced the desired output.but may i know how can i run my executable .jar file outside command line?how can the -Dfile.encoding=UTF-8
@dacwe :i tried changing my source code into
BufferedWriter bout = new java.io.BufferedWriter(new java.io.OutputStreamWriter(
new java.io.FileOutputStream(filename), "UTF-8"));
but the output still is not encoded correctly.anything i miss here?
解决方案
After some major discussion in @Dave G's answer!
Using java -Dfile.encoding=UTF-8 -jar your-jar-file.jar works.
Updating your code as @Dave G suggested (and your edit) should work.
- Have you really repackaged your jar?
- Do you call
close() on bout? (e.g. maybe your file isn't updated)
Here is a full example that might get you going:
public static void main(String... args) throws Exception {
PrintWriter out = new PrintWriter(new File("hello.txt"), "UTF-8");
out.print("written in utf-8");
out.close();
}
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