尝试编译java代码时非法字符 [英] Illegal Character when trying to compile java code

问题描述

我有一个程序允许用户在富文本框中键入java代码，然后使用java编译器对其进行编译。每当我尝试编译我编写的代码时，我都会收到一条错误消息，指出我的代码开头有一个非法的字符。这是编译器给我的错误：

I have a program that allows a user to type java code into a rich text box and then compile it using the java compiler. Whenever I try to compile the code that I have written I get an error that says that I have an illegal character at the beginning of my code that is not there. This is the error the compiler is giving me:

C:\Users\Travis Michael>"\Program Files\Java\jdk1.6.0_17\bin\javac" Test.java
Test.java:1: illegal character: \187
public class Test
 ^
Test.java:1: illegal character: \191
public class Test
  ^
2 errors

推荐答案

当您未指定编码时，BOM由File.WriteAllText（）或StreamWriter生成。默认设置是使用UTF8编码并生成BOM。您可以通过其-encoding命令行选项告诉java编译器。

The BOM is generated by, say, File.WriteAllText() or StreamWriter when you don't specify an Encoding. The default is to use the UTF8 encoding and generate a BOM. You can tell the java compiler about this with its -encoding command line option.

阻力最小的路径是避免生成BOM。通过指定System.Text.Encoding.Default来执行此操作，该文件将使用操作系统的默认代码页中的字符编写文件，并且不会编写BOM。使用File.WriteAllText（String，String，Encoding）重载或StreamWriter（String，Boolean，Encoding）构造函数。

The path of least resistance is to avoid generating the BOM. Do so by specifying System.Text.Encoding.Default, that will write the file with the characters in the default code page of your operating system and doesn't write a BOM. Use the File.WriteAllText(String, String, Encoding) overload or the StreamWriter(String, Boolean, Encoding) constructor.

只需确保您创建的文件没有'由世界另一个角落的机器编译。它将生成 mojibake 。

Just make sure that the file you create doesn't get compiled by a machine in another corner of the world. It will produce mojibake.

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