Servlet 发生异常: Cannot call sendRedirect() after the response has been committed!
运行时发生异常:
Cannot call sendRedirect() after the response has been committed
代码:
if(userid==null||userid.trim().length()==0){
response.sendRedirect("register.jsp");
}
if(password==null||password.trim().length()==0){
response.sendRedirect("register.jsp");
}
如果都进入这些if里面了 都会执行response.sendRedirect(“register.jsp”);
而response.sendRedirect只能执行一次!
解决:
response.sendRedirect() 后面加入return!
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