package com.java110.utils.util;

import java.io.PrintWriter;
import java.io.StringWriter;
import java.lang.reflect.Field;

/**
 * 异常工具类
 */
public class ExceptionUtil {

    public static String getStackTrace(Throwable throwable) {
        StringWriter sw = new StringWriter();
        PrintWriter pw = new PrintWriter(sw);

        try {
            throwable.printStackTrace(pw);

            Field detailMessageField = Throwable.class.getDeclaredField("detailMessage");

            // 2. 设置字段可访问（突破私有访问限制）
            detailMessageField.setAccessible(true);

            // 3. 获取字段值（即异常的详细消息）
            String detailMessage = (String) detailMessageField.get(throwable);

            return detailMessage;
        } catch (NoSuchFieldException e) {
            throw new RuntimeException(e);
        } catch (IllegalAccessException e) {
            throw new RuntimeException(e);
        } finally {
            pw.close();
        }
    }
}