java的异常（Exception）信息的详细记录

下面的三个方法都是获取异常的详细信息，或许的异常详细信息以字符串的形式返回，保持栈堆载的风格

方法一：

public static String getExceptionAllinformation(Exception ex){
String sOut = "";
sOut += ex.getMessage() + "\r\n";
StackTraceElement[] trace = ex.getStackTrace();
for (StackTraceElement s : trace) {
sOut += "\tat " + s + "\r\n";
}
return sOut;
}

方法二：

public static String getExceptionAllinformation_01(Exception ex) {
ByteArrayOutputStream out = new ByteArrayOutputStream();
PrintStream pout = new PrintStream(out);
ex.printStackTrace(pout);
String ret = new String(out.toByteArray());
pout.close();
try {
out.close();
} catch (Exception e) {
}
return ret;
}

方法三：

private static String toString_02(Throwable e){
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw, true);
e.printStackTrace(pw);
pw.flush();
sw.flush();
return sw.toString();
}