JVM Default Character Set problem __JVM

Get JVM Default Character set: System.getproperty ("file.encoding")

public class Test {public
	static void Main (string[] args) {
		System.out.println (System.getproperty (" File.encoding "));
	}

Get different lengths of Chinese characters

public class Test {public
	static void Main (string[] args) {
		System.out.println ("Test". GetBytes (Charset.forname (" UTF-8). length);//Result: 3 System.out.println ("
		test". GetBytes (Charset.forname ("GBK")). length);//Result: 2
	}
}

Through the above tests to draw a general result: XP system installation Tomcat get the default character set for Gbk,linux depending on the language different from the general system porting from under Windows easily garbled (test method can create a new charset.jsp, add the following content).

<%=system.getproperty ("file.encoding")%>

There are two ways to unify the JVM character set: One is to use a uniform character set, such as GetBytes ("GBK"), and so on, when the character set is required, and the second, to specify the java_opts parameter during tomcat startup-dfile.encoding =utf-8 "

java_opts= "$JAVA _opts-dfile.encoding=utf-8"