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源码讲解renderResponse和responseComplete的区别
关键字: renderResponse responseComplete
看源代码：
responseComplete：
/**
* <p>Signal the JavaServer Faces implementation that the HTTP response
* for this request has already been generated (such as an HTTP redirect),
* and that the request processing lifecycle should be terminated as soon
* as the current phase is completed.</p>
*
* @throws IllegalStateException if this method is called after
* this instance has been released
*/
public abstract void responseComplete();

renderResponse：
/**
* <p>Signal the JavaServer faces implementation that, as soon as the
* current phase of the request processing lifecycle has been completed,
* control should be passed to the <em>Render Response</em> phase,
* bypassing any phases that have not been executed yet.</p>
*
* @throws IllegalStateException if this method is called after
* this instance has been released
*/
public abstract void renderResponse();

responseComplete和renderResponse的关系有点象break和continue的关系，responseComplete指示当前的response已经产生，JSF应该在当前阶段执行完成后立刻整个生命周期，break的概念。renderResponse则是指示当前阶段执行结束后直接跳到Render Response阶段，继续生命周期，因此是continue的概念。

下面是LifeCycle的execute和render方法，更加证实了这些：

com.sun.faces.lifecycle.LifecycleImpl
// Execute the phases up to but not including Render Response
public void execute(FacesContext context) throws FacesException {

if (context == null) {
throw new NullPointerException
(MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "context"));
}

if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("execute(" + context + ")");
}

for (int i = 1, len = phases.length -1 ; i < len; i++) { // Skip ANY_PHASE placeholder

if (context.getRenderResponse() ||
context.getResponseComplete()) {
break;
}

phases[i].doPhase(context, this, listeners.listIterator());

}

}


// Execute the Render Response phase
public void render(FacesContext context) throws FacesException {

if (context == null) {
throw new NullPointerException
(MessageUtils.getExceptionMessageString
(MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "context"));
}

if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("render(" + context + ")");
}

if (!context.getResponseComplete()) {
response.doPhase(context, this, listeners.listIterator());
}

}
一般加ResponseComplete之后,当前页面会变成空白,这对于后台关闭页面可用