130 lines
4.2 KiB
Java
130 lines
4.2 KiB
Java
package cn.keking.utils;
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import io.mola.galimatias.GalimatiasParseException;
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import java.io.UnsupportedEncodingException;
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import java.net.MalformedURLException;
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import java.net.URL;
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import java.net.URLEncoder;
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import java.util.HashMap;
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import java.util.Map;
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/**
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* @author : kl
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* create : 2020-12-27 1:30 上午
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**/
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public class WebUtils {
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/**
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* 获取标准的URL
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* @param urlStr url
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* @return 标准的URL
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*/
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public static URL normalizedURL(String urlStr) throws GalimatiasParseException, MalformedURLException {
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return io.mola.galimatias.URL.parse(urlStr).toJavaURL();
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}
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/**
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* 获取url中的参数
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*
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* @param url url
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* @param name 参数名
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* @return 参数值
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*/
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public static String getUrlParameterReg(String url, String name) {
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Map<String, String> mapRequest = new HashMap<>();
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String strUrlParam = truncateUrlPage(url);
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if (strUrlParam == null) {
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return "";
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}
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//每个键值为一组
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String[] arrSplit = strUrlParam.split("[&]");
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for (String strSplit : arrSplit) {
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String[] arrSplitEqual = strSplit.split("[=]");
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//解析出键值
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if (arrSplitEqual.length > 1) {
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//正确解析
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mapRequest.put(arrSplitEqual[0], arrSplitEqual[1]);
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} else if (!arrSplitEqual[0].equals("")) {
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//只有参数没有值，不加入
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mapRequest.put(arrSplitEqual[0], "");
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}
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}
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return mapRequest.get(name);
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}
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/**
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* 去掉url中的路径，留下请求参数部分
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*
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* @param strURL url地址
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* @return url请求参数部分
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*/
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private static String truncateUrlPage(String strURL) {
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String strAllParam = null;
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strURL = strURL.trim();
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String[] arrSplit = strURL.split("[?]");
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if (strURL.length() > 1) {
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if (arrSplit.length > 1) {
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if (arrSplit[1] != null) {
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strAllParam = arrSplit[1];
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}
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}
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}
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return strAllParam;
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}
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/**
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* 从url中剥离出文件名
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*
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* @param url 格式如：http://www.com.cn/20171113164107_月度绩效表模板(新).xls?UCloudPublicKey=ucloudtangshd@weifenf.com14355492830001993909323&Expires=&Signature=I D1NOFtAJSPT16E6imv6JWuq0k=
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* @return 文件名
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*/
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public static String getFileNameFromURL(String url) {
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if (url.toLowerCase().startsWith("file:")) {
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try {
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URL urlObj = new URL(url);
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url = urlObj.getPath().substring(1);
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} catch (MalformedURLException e) {
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e.printStackTrace();
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}
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}
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// 因为url的参数中可能会存在/的情况，所以直接url.lastIndexOf("/")会有问题
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// 所以先从？处将url截断，然后运用url.lastIndexOf("/")获取文件名
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String noQueryUrl = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
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return noQueryUrl.substring(noQueryUrl.lastIndexOf("/") + 1);
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}
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/**
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* 从url中获取文件后缀
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*
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* @param url url
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* @return 文件后缀
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*/
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public static String suffixFromUrl(String url) {
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String nonPramStr = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
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String fileName = nonPramStr.substring(nonPramStr.lastIndexOf("/") + 1);
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return KkFileUtils.suffixFromFileName(fileName);
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}
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/**
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* 对url中的文件名进行UTF-8编码
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*
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* @param url url
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* @return 文件名编码后的url
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*/
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public static String encodeUrlFileName(String url) {
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String noQueryUrl = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
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int fileNameStartIndex = noQueryUrl.lastIndexOf('/') + 1;
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int fileNameEndIndex = noQueryUrl.lastIndexOf('.');
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String encodedFileName;
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try {
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encodedFileName = URLEncoder.encode(noQueryUrl.substring(fileNameStartIndex, fileNameEndIndex), "UTF-8");
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} catch (UnsupportedEncodingException e) {
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return null;
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}
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return url.substring(0, fileNameStartIndex) + encodedFileName + url.substring(fileNameEndIndex);
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}
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}
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