下面哪段代码能从请求对象中获取名为"UID"的Cookie的值?
A: String value=request.getCookie("UID");
B: String value=request.getHeader("UID");
C: Cookie[] cs=request.getCookies(); String value=null; String cName=null;
if(cs!=null){ for(int i=0;i
D: Cookie[] cs=request.getCookies(); if(cs.length>0){ String value=cs[0].getValue();
}
A: String value=request.getCookie("UID");
B: String value=request.getHeader("UID");
C: Cookie[] cs=request.getCookies(); String value=null; String cName=null;
if(cs!=null){ for(int i=0;i
D: Cookie[] cs=request.getCookies(); if(cs.length>0){ String value=cs[0].getValue();
}
举一反三
- 以下哪段代码能从请求对象中获取名为"ORA-UID"的Cookie的值? ( ) A: String value = request. getCookie("ORA-UID"); B: String value = request.getHeader("ORA-UID"); C: Cookie[] cookies = request.getCookies();String cName= null;String value = null;if( cookies !=null){for(int i = 0 ;i<;cookies.length; i++){ cName = cookie[i].getName(;if(cName!=null &&. cName.equalsIgnoreCase("ORA-UID")){value = cookies[i].getValue();} D: Cookie[] cookies = request.getCookies();if(cookies. length>;0){String value = cookies[0].getValue();}
- 下列选择中属于request对象常用方法的有() A: getAttribute(String name) B: getHeader(String name) C: getParameter(String name) D: getCookies()
- 写入Cookie对象,通过响应将Cookie写入客户端以下正确的是( )。 A: Cookie newCookie=new Cookie(String key,Object value); B: response.addCookie(newCookie); C: Cookie[] cookies=request.getCookies(); D: request.addCookie(newCookie);
- 读取客户端存储的Cookie,以下操作正确的是( )。 A: Cookie newCookie=new Cookie(String key,Object value); B: response.addCookie(newCookie); C: Cookie[] cookies=response.getCookies(); D: Cookie[] cookies=request.getCookies();
- 下面哪个语句能够正确地生成5个空字符串?( ) A: String a[]=new String[5]; for(int i=0;i<;5;a[i++]=""); B: String a[5]; C: String []a=new String[5]; for( int i=0;i<;5;a[i++]=null); D: String[5]a;