异常信息转换为字符串输出

public class ExceptionTrans {
    /**
     * 异常信息转换为字符串
     *
     * @param t 异常对象
     * @return
     */
    public static String ex2String(Throwable t) {
        StringWriter sw = new StringWriter();
        t.printStackTrace(new PrintWriter(sw, true));
        return sw.getBuffer().toString();
    }

    public static void main(String[] args) {
        String ex = null;
        try {
            int a = 0;
            a = a / a;
            if (true) {
                throw new CordException("test");
            }
        } catch (Exception e) {
            e.printStackTrace();
            ex = ex2String(e);
            System.out.println("------------------------");
        }
        System.out.printf(ex);
    }
}

还可以使用ASIC控制码输出不同的字体颜色

package com.example.demopromclient;

public class Test {

public static final String ANSI_RESET = "\u001B[0m";

public static final String ANSI_RED = "\u001B[31m";

public static final String ANSI_YELLOW = "\u001B[33m";

public static final String ANSI_CYAN = "\u001B[36m";

public static void main(String[] args) {
    System.out.println(ANSI_RED + "this text is red" + ANSI_RESET);
    System.out.println(ANSI_YELLOW + "this text is yellow" + ANSI_RESET);
    System.out.println(ANSI_CYAN + "this text is cyan" + ANSI_RESET);
}

}