package?com.itheima.common.utils;
import?java.io.IOException;
import?java.util.Map;
import?javax.servlet.http.HttpServletRequest;
import?javax.servlet.jsp.JspException;
import?javax.servlet.jsp.JspWriter;
import?javax.servlet.jsp.tagext.TagSupport;
/**
?*?顯示格式：首頁?上一頁?1?2?3?4?5下一頁?尾頁
?*/
public?class?NavigationTag?extends?TagSupport?{
	static?final?long?serialVersionUID?=?2372405317744358833L;
	/**
	?*?request?中用于保存Page?對象的變量名默認為“page”
	?*/
	private?String?bean?=?“page“;
	/**
	?*?分頁跳轉的url地址此屬性必須
	?*/
	private?String?url?=?null;
	/**
	?*?顯示頁碼數量
	?*/
	private?int?number?=?5;

	@Override
	public?int?doStartTag（）?throws?JspException?{
		JspWriter?writer?=?pageContext.getOut（）;
		HttpServletRequest?request?=?
				（HttpServletRequest）?pageContext.getRequest（）;
		Page?page?=?（Page）?request.getAttribute（bean）;
		if?（page?==?null）
			return?SKIP_BODY;
		url?=?resolveUrl（url?pageContext）;
		try?{
			//?計算總頁數
			int?pageCount?=?page.getTotal（）?/?page.getSize（）;
			if?（page.getTotal（）?%?page.getSize（）?>?0）?{
				pageCount++;
			}
			writer.print（““）;
		}?catc

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-06-05?09:04??Chapter18\
?????目錄???????????0??2018-06-05?09:03??Chapter18\.gradle\
?????目錄???????????0??2018-06-05?09:00??Chapter18\.gradle\3.5-rc-2\
?????目錄???????????0??2018-06-05?09:00??Chapter18\.gradle\3.5-rc-2\file-changes\
?????文件???????????1??2018-06-12?10:42??Chapter18\.gradle\3.5-rc-2\file-changes\last-build.bin
?????目錄???????????0??2018-06-05?09:00??Chapter18\.gradle\3.5-rc-2\taskHistory\
?????文件???????18697??2018-06-04?11:22??Chapter18\.gradle\3.5-rc-2\taskHistory\fileHashes.bin
?????文件???????18934??2018-06-04?11:22??Chapter18\.gradle\3.5-rc-2\taskHistory\fileSnapshots.bin
?????文件???????19415??2018-06-04?11:22??Chapter18\.gradle\3.5-rc-2\taskHistory\taskHistory.bin
?????文件??????????17??2018-06-12?10:42??Chapter18\.gradle\3.5-rc-2\taskHistory\taskHistory.lock
?????目錄???????????0??2018-06-05?09:03??Chapter18\.gradle\4.5.1\
?????目錄???????????0??2018-06-05?09:04??Chapter18\.gradle\4.5.1\fileChanges\
?????文件???????????1??2018-06-05?09:04??Chapter18\.gradle\4.5.1\fileChanges\last-build.bin
?????目錄???????????0??2018-06-05?09:03??Chapter18\.gradle\4.5.1\fileHashes\
?????文件???????18597??2018-06-05?09:04??Chapter18\.gradle\4.5.1\fileHashes\fileHashes.bin
?????文件??????????17??2018-06-05?09:04??Chapter18\.gradle\4.5.1\fileHashes\fileHashes.lock
?????目錄???????????0??2018-06-05?09:00??Chapter18\.gradle\buildOutputCleanup\
?????文件???????????0??2018-06-04?11:22??Chapter18\.gradle\buildOutputCleanup\built.bin
?????文件??????????56??2018-06-04?11:22??Chapter18\.gradle\buildOutputCleanup\cache.properties
?????文件???????????2??2018-06-12?10:42??Chapter18\.gradle\buildOutputCleanup\cache.properties.lock
?????目錄???????????0??2018-06-05?09:04??Chapter18\.gradle\vcsWorkingDirs\
?????文件???????????0??2018-06-05?09:04??Chapter18\.gradle\vcsWorkingDirs\gc.properties
?????目錄???????????0??2018-06-13?17:22??Chapter18\.idea\
?????目錄???????????0??2018-06-05?09:04??Chapter18\.idea\artifacts\
?????文件?????????473??2018-06-05?09:04??Chapter18\.idea\artifacts\Gradle___Chapter18_1_0_SNAPSHOT_war.xml
?????文件????????4403??2018-06-05?09:04??Chapter18\.idea\artifacts\Gradle___Chapter18_1_0_SNAPSHOT_war__exploded_.xml
?????文件?????????286??2018-06-05?09:04??Chapter18\.idea\compiler.xml
?????文件?????????670??2018-06-05?09:04??Chapter18\.idea\gradle.xml
?????目錄???????????0??2018-06-05?09:09??Chapter18\.idea\inspectionProfiles\
?????目錄???????????0??2018-06-12?10:45??Chapter18\.idea\libraries\
?????文件?????????570??2018-06-12?10:45??Chapter18\.idea\libraries\Gradle__junit_junit_4_12.xml
............此處省略301個文件信息