Java获取请求头信息的操作步骤
作者：_不吃猫的鱼_
这篇文章主要介绍了Java获取请求头信息,本文分步骤结合实例代码给大家介绍的非常详细,对大家的学习或工作具有一定的参考借鉴价值,需要的朋友可以参考下
Java获取请求头信息
第一步，获取request ,response
RequestAttributes requestAttributes = RequestContextHolder.getRequestAttributes();//这个RequestContextHolder是Springmvc提供来获得请求的东西
HttpServletRequest request = ((ServletRequestAttributes) requestAttributes).getRequest();
HttpServletResponse response = ((ServletRequestAttributes) requestAttributes).getResponse();第二步，封装方法,获取请求头信息
private Map<String, Object> getHeads(HttpServletRequest request){
Map<String, Object> stringObjectHashMap = new HashMap<>();
Enumeration<String> headers = request.getHeaderNames();
System.out.println("请求头信息");
while(headers.hasMoreElements()){
String headName = (String)headers.nextElement();
String headValue = request.getHeader(headName);
System.out.println(headName+"："+headValue);
stringObjectHashMap.put(headName,headValue);
}
return stringObjectHashMap;
}java获取request请求头内容
注意一下request 和 httpServletRequest的类型
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
// TODO Auto-generated method stub
// place your code here
HttpServletRequest httpServletRequest = (HttpServletRequest) request;
HttpServletResponse httpServletResponse = (HttpServletResponse) response;
Enumeration<String> headerNames = httpServletRequest.getHeaderNames();
while(headerNames.hasMoreElements()) {//判断是否还有下一个元素
String nextElement = headerNames.nextElement();//获取headerNames集合中的请求头
String header2 = httpServletRequest.getHeader(nextElement);//通过请求头得到请求内容
System.err.println("请求头==========key" + nextElement + "----------VALUE:" + header2);
}
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