package com.jeecms.core.web.front;
import javax.servlet.http.HttpServletRequest;
import org.apache.commons.lang.StringUtils;
import org.springframework.web.util.UrlPathHelper;
/**
* URI帮助类
*
* @author liufang
*
*/
public class URLHelper {
/**
* 获得页号
*
* @param request
* @return
*/
public static int getPageNo(HttpServletRequest request) {
return getPageNo(getURI(request));
}
/**
* 获得路径信息
*
* @param request
* @return
*/
public static String[] getPaths(HttpServletRequest request) {
return getPaths(getURI(request));
}
/**
* 获得路径参数
*
* @param request
* @return
*/
public static String[] getParams(HttpServletRequest request) {
return getParams(getURI(request));
}
private static String getURI(HttpServletRequest request) {
UrlPathHelper helper = new UrlPathHelper();
String uri = helper.getOriginatingRequestUri(request);
String ctx = helper.getOriginatingContextPath(request);
if (!StringUtils.isBlank(ctx)) {
return uri.substring(ctx.length());
} else {
return uri;
}
}
/**
* 获得翻页信息
*
* @param request
* @return
*/
public static PageInfo getPageInfo(HttpServletRequest request) {
UrlPathHelper helper = new UrlPathHelper();
String uri = helper.getOriginatingRequestUri(request);
String queryString = helper.getOriginatingQueryString(request);
return getPageInfo(uri, queryString);
}
/**
* 获得页号
*
* @param uri
* URI {@link HttpServletRequest#getRequestURI()}
* @return
*/
public static int getPageNo(String uri) {
if (uri == null) {
throw new IllegalArgumentException("URI can not be null");
}
if (!uri.startsWith("/")) {
throw new IllegalArgumentException("URI must start width '/'");
}
int pageNo = 1;
int bi = uri.indexOf("_");
int mi = uri.indexOf("-");
int pi = uri.indexOf(".");
if (bi != -1) {
String pageNoStr;
if (mi != -1) {
pageNoStr = uri.substring(bi + 1, mi);
} else {
if (pi != -1) {
pageNoStr = uri.substring(bi + 1, pi);
} else {
pageNoStr = uri.substring(bi + 1);
}
}
try {
pageNo = Integer.valueOf(pageNoStr);
} catch (Exception e) {
}
}
return pageNo;
}
/**
* 获得路径数组
*
* @param uri
* URI {@link HttpServletRequest#getRequestURI()}
* @return
*/
public static String[] getPaths(String uri) {
if (uri == null) {
throw new IllegalArgumentException("URI can not be null");
}
if (!uri.startsWith("/")) {
throw new IllegalArgumentException("URI must start width '/'");
}
int bi = uri.indexOf("_");
int mi = uri.indexOf("-");
int pi = uri.indexOf(".");
// 获得路径信息
String pathStr;
if (bi != -1) {
pathStr = uri.substring(0, bi);
} else if (mi != -1) {
pathStr = uri.substring(0, mi);
} else if (pi != -1) {
pathStr = uri.substring(0, pi);
} else {
pathStr = uri;
}
String[] paths = StringUtils.split(pathStr, '/');
return paths;
}
/**
* 获得路径参数
*
* @param uri
* URI {@link HttpServletRequest#getRequestURI()}
* @return
*/
public static String[] getParams(String uri) {
if (uri == null) {
throw new IllegalArgumentException("URI can not be null");
}
if (!uri.startsWith("/")) {
throw new IllegalArgumentException("URI must start width '/'");
}
int mi = uri.indexOf("-");
int pi = uri.indexOf(".");
String[] params;
if (mi != -1) {
String paramStr;
if (pi != -1) {
paramStr = uri.substring(mi, pi);
} else {
paramStr = uri.substring(mi);
}
params = new String[StringUtils.countMatches(paramStr, "-")];
int fromIndex = 1;
int nextIndex = 0;
int i = 0;
while ((nextIndex = paramStr.indexOf("-", fromIndex)) != -1) {
params[i++] = paramStr.substring(fromIndex, nextIndex);
fromIndex = nextIndex + 1;
}
params[i++] = paramStr.substring(fromIndex);
} else {
params = new String[0];
}
return params;
}
/**
* 获得URL信息
*
* @param uri
* URI {@link HttpServletRequest#getRequestURI()}
* @param queryString
* 查询字符串 {@link HttpServletRequest#getQueryString()}
* @return
*/
public static PageInfo getPageInfo(String uri, String queryString) {
if (uri == null) {
return null;
}
if (!uri.startsWith("/")) {
throw new IllegalArgumentException("URI must start width '/'");
}
int bi = uri.indexOf("_");
int mi = uri.indexOf("-");
int pi = uri.indexOf(".");
int lastSpt = uri.lastIndexOf("/") + 1;
String url;
if (!StringUtils.isBlank(queryString)) {
url = uri + "?" + queryString;
} else {
url = uri;
}
// 翻页前半部
String urlFormer;
if (bi != -1) {
urlFormer = uri.substring(lastSpt, bi);
} else if (mi != -1) {
urlFormer = uri.substring(lastSpt, mi);
} else if (pi != -1) {
urlFormer = uri.substring(lastSpt, pi);
} else {
urlFormer = uri.substring(lastSpt);
}
// 翻页后半部
String urlLater;
if (mi != -1) {
urlLater = url.substring(mi);
} else if (pi != -1) {
urlLater = url.substring(pi);
} else {
urlLater = url.substring(uri.length());
}
String href = url.substring(lastSpt);
return new PageInfo(href, urlFormer, urlLater);
}
/**
* URI信息
*
* @author liufang
*
*/
public static class PageInfo {
/**
* 页面地址
*/
private String href;
/**
* href前半部（相对于分页）
*/
private String hrefFormer;
/**
* href后半部（相对于分页）
*/
private String hrefLatter;
public PageInfo(String href, String hrefFormer, String hrefLatter) {
this.href = href;
this.hrefFormer = hrefFormer;
this.hrefLatter = hrefLatter;
}
public String getHref() {
return href;
}
public void setHref(String href) {
this.href = href;
}
public String getHrefFormer() {
return hrefFormer;
}
public void setHrefFormer(String hrefFormer) {
this.hrefFormer = hrefFormer;
}
public String getHrefLatter() {
return hrefLatter;
}
public void setHrefLatter(String hrefLatter) {
this.hrefLatter = hrefLatter;
}
}
}