java如何从servlet请求将hashmap传递给jsp。塞塔提布特

Question

如何使用request.setatttibute()将linkedhashmap从java servlet传递到jsp，以及如何在jsp中使用它`

LinkedHashmap<String,Person> link = new LinkedHashmap<String,Person>()
request.settattribute("hash",link)

现在我如何在jsp中获取它并使其工作

Answer 1

下面是如何放置请求属性，然后获取它

    Map link = new LinkedHashMap();
    link.put("key", "value");
    //put map as request attribute 
    request.setAttribute("hash",link);
    //get map as request attribute from the request
    Map link1 =(Map)request.getAttribute("hash");