透析struts中的redirect="true"与redirect="false"
再struts－config.xml文件的forward下有个redirect属性，这个属性的值为true和false有什么区别呢

redirect="true"时，会调用sendRedirect进行定向，而sendRedirect定向采用的时"(HTTP status 302)。

再浏 览器发生页面改变

redirect="false"时采用的是server-side forward端的定向



public void sendRedirect(String location)
throws IOException {

if (isCommitted())
throw new IllegalStateException
(sm.getString("coyoteResponse.sendRedirect.ise"));

// Ignore any call from an included servlet
if (included)
return;

// Clear any data content that has been buffered
resetBuffer();

// Generate a temporary redirect to the specified location
try {
String absolute = toAbsolute(location);

// public static final int SC_FOUND = 302;
setStatus(SC_FOUND);
setHeader("Location", absolute);
} catch (IllegalArgumentException e) {
setStatus(SC_NOT_FOUND);
}

引起的结果是：

如果采用redirect＝true，那么request到下一个页面时request.setAttribute()时的值会丢失， 而false是可以