java通过抛异常来返回提示信息

结论：
如果把通过抛异常的方式得到提示信息，可以使用java.lang.Throwable中的构造函数：

    public Throwable(String message) {
        fillInStackTrace();
        detailMessage = message;
    }

或

    public Throwable(String message, Throwable cause) {
        fillInStackTrace();
        detailMessage = message;
        this.cause = cause;
    }

原因及代码示例：
1、通过java.lang.Throwable中的Constructs

    public Throwable(Throwable cause) {
        fillInStackTrace();
        detailMessage = (cause==null ? null : cause.toString());
        this.cause = cause;
    }

在输出时获取的detailMessage是：

exception.ProcessorException: java.lang.IllegalArgumentException: Failt to process

Exception信息的输出：

exception.ProcessorException: exception.ProcessorException: java.lang.IllegalArgumentException: Failt to process

code:

package exception;

/*2015-8-22*/
public class ExceptionChain {
    public static void main(String[] args) {
        Business business = new Business();
        try {
            business.doBusiness();
        } catch (ProcessorException e) {
            System.out.println(e.getMessage());
            System.out.println("e:\n" + e);
        }

    }

}

class Business {

    public void doBusiness() throws ProcessorException {

        try {
            process1();
        } catch (Exception e) {
            throw new ProcessorException(e);
            // throw new ProcessorException(e.getMessage(), e);
            // throw new ProcessorException(e.getMessage());
        }

    }

    private void process1() throws ProcessorException {
        try {
            process2();
        } catch (Exception e) {
            // throw new ProcessorException(e.getMessage(), e);
            // throw new ProcessorException(e.getMessage());
            throw new ProcessorException(e);
        }

    }

    private void process2() {
        throw new IllegalArgumentException("Failt to process");
    }

}

class ProcessorException extends Exception {

    private static final long serialVersionUID = -4270191862690602942L;

    public ProcessorException(Throwable cause) {
        super(cause);
    }

    public ProcessorException(String message) {
        super(message);
    }

    public ProcessorException(String message, Throwable cause) {
        super(message, cause);
    }

}

2、通过java.lang.Throwable中的Constructs

    public Throwable(String message) {
        fillInStackTrace();
        detailMessage = message;
    }

    /**
     * Fills in the execution stack trace. This method records within this
     * Throwable object information about the current state of
     * the stack frames for the current thread.
     *
     * @return  a reference to this Throwable instance.
     * @see     java.lang.Throwable#printStackTrace()
     */
    public synchronized native Throwable fillInStackTrace();

在输出时获取的detailMessage是：

Failt to process

 Exception信息的输出：

exception.ProcessorException: Failt to process

code:
把上面示例代码中throw new ProcessorException(e.getMessage());注释去掉，把 // throw new ProcessorException(e);注释

3、通过java.lang.Throwable中的Constructs：

    public Throwable(String message, Throwable cause) {
        fillInStackTrace();
        detailMessage = message;
        this.cause = cause;
    }

在输出时获取的detailMessage是：

Failt to process

Exception信息的输出：

exception.ProcessorException: Failt to process

code:
操作方式与2相同