Java之ExceptionHelper工具类

import java.util.Map;

import org.apache.commons.lang3.StringUtils;
import org.apache.commons.lang3.exception.ExceptionUtils;

public class ExceptionHelper {
    public static String getFullStackTrace(Throwable t){
        if(t==null)return "";
        String expStr = "";
        if(t instanceof SystemException){
            expStr +=  getSystemExceptionMsg((SystemException)t);
        }
        expStr += StringUtils.join(ExceptionUtils.getRootCauseStackTrace(t),"\n");
        return expStr;
    }

    private static String getSystemExceptionMsg(SystemException exp) {
        if(exp==null)return "";
        StringBuilder sb = new StringBuilder();
        ErrorCode errorCode =exp.getErrorCode();
        Map<String,Object> properties = exp.getProperties();
        if (errorCode != null) {
            sb.append(
                    errorCode.getCode() + ":"+errorCode.getValue() + ":"+
                    errorCode + ":" + errorCode.getClass().getName()+"\n"
                    );
        }
        for (String key : properties.keySet()) {
            sb.append(key + "=[" + properties.get(key) + "]\n");
        }
        return sb.toString();
    }
}