tailieunhanh - Java 6 Platform Revealed phần 4

Tham khảo tài liệu 'java 6 platform revealed phần 4', công nghệ thông tin, kỹ thuật lập trình phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | 48 CHAPTER 3 I O NETWORKING AND SECURITY UPDATES Map to return Map String List String cookieMap new HashMap String List String requestHeaders Convert StringBuilder to List store in map if 0 List String list Cookie list CookieMap cookieMap Make read-only return cookieMap In Java 6 the ListCookieHandler turns into the CookieManager class. The cookieJar that is used as the cache becomes the CookieStore. One thing not in this implementation of CookieHandler is a policy for storing cookies. Do you want to accept no cookies all cookies or only cookies from the original server That s where the CookiePolicy class comes into play. You will explore CookiePolicy more later. The last part of the Java 5 situation is the Cookie class itself. The constructor parses out the fields from the header line. Listing 3-5 shows an implementation that will be replaced in Java 6 by HttpCookie. The Java 6 version will also be more complete. Listing 3-5. Implementing a Cookie Class to Save for Java 5 import . import . import . public class Cookie String name String value URI uri CHAPTER 3 I O NETWORKING AND SECURITY UPDATES 49 String domain Date expires String path private static DateFormat expiresFormatl new SimpleDateFormat E dd MMM yyyy k m s GMT private static DateFormat expiresFormat2 new SimpleDateFormat E dd-MMM-yyyy k m s GMT public Cookie URI uri String header String attributes String nameValue attributes 0 .trim uri 0 1 for int i 1 i i nameValue attributes i .trim int equals if equals -1 continue String name 0 equals String value equals 1 if .