获取异常信息e.printStackTrace()的内容

package com.gavin.exception.demo;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;

public class Test {

    public static void main(String[] args) {
        try {
            method();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            Writer writer = new StringWriter();
            e.printStackTrace(new PrintWriter(writer));  
            System.out.println("打印错误:"+writer.toString());  
            
            e.printStackTrace();
        }
    }
    
    public static void method() throws Exception{
        throw new Exception("出错了");
    }
}