/*
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* Copyright (c) 2018-2028, DreamLu All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* Neither the name of the dreamlu.net developer nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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* Author: DreamLu 卢春梦 (596392912@qq.com)
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*/
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package org.springblade.core.tool.utils;
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import org.springframework.core.io.ClassPathResource;
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import org.springframework.core.io.FileSystemResource;
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import org.springframework.core.io.Resource;
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import org.springframework.core.io.UrlResource;
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import org.springframework.core.io.support.ResourcePatternResolver;
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import org.springframework.util.Assert;
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import java.io.IOException;
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/**
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* 资源工具类
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*
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* @author L.cm
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*/
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public class ResourceUtil extends org.springframework.util.ResourceUtils {
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public static final String HTTP_REGEX = "^https?:.+$";
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public static final String FTP_URL_PREFIX = "ftp:";
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/**
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* 获取资源
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* <p>
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* 支持一下协议:
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* <p>
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* 1. classpath:
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* 2. file:
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* 3. ftp:
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* 4. http: and https:
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* 5. classpath*:
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* 6. C:/dir1/ and /Users/lcm
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* </p>
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*
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* @param resourceLocation 资源路径
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* @return {Resource}
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* @throws IOException IOException
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*/
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public static Resource getResource(String resourceLocation) throws IOException {
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Assert.notNull(resourceLocation, "Resource location must not be null");
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if (resourceLocation.startsWith(CLASSPATH_URL_PREFIX)) {
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return new ClassPathResource(resourceLocation);
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}
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if (resourceLocation.startsWith(FTP_URL_PREFIX)) {
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return new UrlResource(resourceLocation);
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}
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if (resourceLocation.matches(HTTP_REGEX)) {
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return new UrlResource(resourceLocation);
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}
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if (resourceLocation.startsWith(ResourcePatternResolver.CLASSPATH_ALL_URL_PREFIX)) {
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return SpringUtil.getContext().getResource(resourceLocation);
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}
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return new FileSystemResource(resourceLocation);
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}
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}
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