最近做的在response.sendRedirect()時出現下列錯誤:
java.lang.IllegalStateException
org.apache.catalina.connector.ResponseFacade.sendRedirect(ResponseFacade.java:423)
經過搜索找到解決的辦法:

j2ee5.0中的介紹:
此類的樹結構:http://www.leftworld.net/online/j2sedoc/javaref/java.lang.illegalstateexception_dsc.htm
java.lang.IllegalStateException
org.apache.catalina.connector.ResponseFacade.sendRedirect(ResponseFacade.java:423)
經過搜索找到解決的辦法:

j2ee5.0中的介紹:
sendRedirect
void sendRedirect(java.lang.String location) throws java.io.IOException
- Sends a temporary redirect response to the client using the specified redirect location URL. This method can accept relative URLs; the servlet container must convert the relative URL to an absolute URL before sending the response to the client. If the location is relative without a leading '/' the container interprets it as relative to the current request URI. If the location is relative with a leading '/' the container interprets it as relative to the servlet container root.
If the response has already been committed, this method throws an IllegalStateException. After using this method, the response should be considered to be committed and should not be written to.
- Parameters:
location
- the redirect location URL- Throws:
java.io.IOException
- If an input or output exception occursjava.lang.IllegalStateException
- If the response was committed or if a partial URL is given and cannot be converted into a valid URL
此類的樹結構:http://www.leftworld.net/online/j2sedoc/javaref/java.lang.illegalstateexception_dsc.htm