Servlet中报Cannot forward after response has been committed错

一、遇到问题

punlic void go()

{

if(a) request.getRequestDispatcher("/a.jsp").forward(request, response);

if (b) request.getRequestDispatcher("/b.jsp").forward(request, response);

}

执行该方法会报Cannot forward after response has been committed

二、查找原因

这两次分发有可能同时执行，执行a分发是正常，但b分发就不能够正常再次转向了。

三、解决办法

punlic void go()

{

if(a) 

{

request.getRequestDispatcher("/a.jsp").forward(request, response);

return;

}

if (b) request.getRequestDispatcher("/b.jsp").forward(request, response);

}