Java 表达式中的转义序列无效

Question

I have the following expression in Java that allows me to load a native library:

String route = System.getenv("ProgramFiles");
System.load(route + "\\MyLib\\lib.dll");

When I launch it my Java application says the following:

Invalid escape sequence (valid ones are \\b \\t \\n \\f \\r \\" \\' \\ )

What I'm doing wrong?

Answer 1

Change your code to this:

StringBuilder builder = new StringBuilder(System.getenv("ProgramFiles"));
builder.append("\\MyLib\\lib.dll");
System.load(builder.toString().replace("\\", "/"));

The replacement of the \\\\ should fix your problem.