Code to Get All the Headers in Java

Enumeration enum1 = request.getHeaderNames();

String name = "user-agent";

String value = request.getHeader(name);

if (value == null) {

// The request header was not present

}

for (; enum1.hasMoreElements(); ) {

// Get the name of the request header

name = (String)enum1.nextElement();

out.println(name);


// Get a value of the request header

value = request.getHeader(name);


// If the request header can appear more than once, get all values

Enumeration valuesEnum = request.getHeaders(name);

for (; valuesEnum.hasMoreElements(); ) {

// Get a value of the request header

value = (String)valuesEnum.nextElement();


out.println(value+"
");

}

}

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