{"id":31483,"date":"2022-12-20T10:52:35","date_gmt":"2023-07-18T00:52:43","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e5%ae%9e%e7%8e%b0gzip%e3%80%82\/"},"modified":"2024-04-29T06:10:42","modified_gmt":"2024-04-28T22:10:42","slug":"%e7%94%a8java%e5%ae%9e%e7%8e%b0gzip%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e5%ae%9e%e7%8e%b0gzip%e3%80%82\/","title":{"rendered":"\u7528Java\u5b9e\u73b0gzip"},"content":{"rendered":"

\u7528Java\u5b9e\u73b0gzip\u3002<\/p>\n

import<\/span> java.io.ByteArrayOutputStream<\/span>;<\/span>\r\nimport<\/span> java.io.IOException<\/span>;<\/span>\r\nimport<\/span> java.nio.charset.StandardCharsets<\/span>;<\/span>\r\nimport<\/span> java.util.zip.GZIPOutputStream<\/span>;<\/span>\r\n\r\nimport<\/span> javax.servlet.http.HttpServletRequest<\/span>;<\/span>\r\nimport<\/span> javax.servlet.http.HttpServletResponse<\/span>;<\/span>\r\n\r\nimport<\/span> org.slf4j.Logger<\/span>;<\/span>\r\nimport<\/span> org.slf4j.LoggerFactory<\/span>;<\/span>\r\nimport<\/span> org.springframework.http.HttpHeaders<\/span>;<\/span>\r\nimport<\/span> org.springframework.http.MediaType<\/span>;<\/span>\r\nimport<\/span> org.springframework.web.bind.annotation.GetMapping<\/span>;<\/span>\r\nimport<\/span> org.springframework.web.bind.annotation.RequestMapping<\/span>;<\/span>\r\nimport<\/span> org.springframework.web.bind.annotation.RestController<\/span>;<\/span>\r\n\r\n@RestController<\/span>\r\n@RequestMapping<\/span>(<\/span>\"\/test\"<\/span>)<\/span>\r\npublic<\/span> class<\/span> TestController<\/span> {<\/span>\r\n\r\n    private<\/span> static<\/span> final<\/span> Logger<\/span> LOGGER<\/span> =<\/span> LoggerFactory<\/span>.<\/span>getLogger<\/span>(<\/span>TestController<\/span>.<\/span>class<\/span>);<\/span>\r\n\r\n    @GetMapping<\/span>\r\n    public<\/span> void<\/span> test<\/span>(<\/span>HttpServletRequest<\/span> request<\/span>,<\/span> HttpServletResponse<\/span> reponse<\/span>)<\/span> throws<\/span> IOException<\/span> {<\/span>\r\n\r\n        \/\/ \u54cd\u5e94\u4f53<\/span>\r\n        String<\/span> content<\/span> =<\/span> \"\u6614\u65e5\u9f8c\u9f8a\u4e0d\u8db3\u5938\uff0c\u4eca\u671d\u653e\u8361\u601d\u65e0\u6daf\u3002\u6625\u98ce\u5f97\u610f\u9a6c\u8e44\u75be\uff0c\u4e00\u65e5\u770b\u5c3d\u957f\u5b89\u82b1\u3002\"<\/span>;<\/span>\r\n\r\n        String<\/span> acceptEncooding<\/span> =<\/span> request<\/span>.<\/span>getHeader<\/span>(<\/span>HttpHeaders<\/span>.<\/span>ACCEPT_ENCODING<\/span>);<\/span>\r\n\r\n        \/**\r\n         * \u83b7\u53d6\u5ba2\u6237\u7aef\u652f\u6301\u7684\u7f16\u7801\u683c\u5f0f\uff0c\u7a0b\u5e8f\u53ef\u4ee5\u6839\u636e\u8fd9\u4e2aheader\u5224\u65ad\u662f\u5426\u8981\u5bf9\u54cd\u5e94\u4f53\u8fdb\u884c\u7f16\u7801\r\n         *\/<\/span>\r\n        LOGGER<\/span>.<\/span>info<\/span>(<\/span>acceptEncooding<\/span>);<\/span>\r\n\r\n\r\n        \/\/ \u54cd\u5e94\u4f53\u4f7f\u7528 gzip \u7f16\u7801<\/span>\r\n        reponse<\/span>.<\/span>setHeader<\/span>(<\/span>HttpHeaders<\/span>.<\/span>CONTENT_ENCODING<\/span>,<\/span> \"gzip\"<\/span>);<\/span>\r\n        \/\/ \u54cd\u5e94\u4f53\u7c7b\u578b\u662f\u5b57\u7b26\u4e32<\/span>\r\n        reponse<\/span>.<\/span>setContentType<\/span>(<\/span>MediaType<\/span>.<\/span>TEXT_PLAIN_VALUE<\/span>);<\/span>\r\n        \/\/ \u7f16\u7801\u662futf-8<\/span>\r\n        reponse<\/span>.<\/span>setCharacterEncoding<\/span>(<\/span>StandardCharsets<\/span>.<\/span>UTF_8<\/span>.<\/span>displayName<\/span>());<\/span>\r\n        \/\/ Gzip\u538b\u7f29\u540e\u54cd\u5e94<\/span>\r\n        reponse<\/span>.<\/span>getOutputStream<\/span>().<\/span>write<\/span>(<\/span>gZip<\/span>(<\/span>content<\/span>.<\/span>getBytes<\/span>(<\/span>StandardCharsets<\/span>.<\/span>UTF_8<\/span>)));<\/span>\r\n\r\n    }<\/span>\r\n\r\n    \/**\r\n     * Gzip\u538b\u7f29\u6570\u636e\r\n     * @param data\r\n     * @return\r\n     * @throws IOException\r\n     *\/<\/span>\r\n    public<\/span> static<\/span> byte<\/span>[]<\/span> gZip<\/span>(<\/span>byte<\/span>[]<\/span> data<\/span>)<\/span> throws<\/span> IOException<\/span> {<\/span>\r\n        ByteArrayOutputStream<\/span> byteArrayOutputStream<\/span> =<\/span> new<\/span> ByteArrayOutputStream<\/span>();<\/span>\r\n        try<\/span> (<\/span>GZIPOutputStream<\/span> gzipOutputStream<\/span> =<\/span> new<\/span> GZIPOutputStream<\/span>(<\/span>byteArrayOutputStream<\/span>))<\/span> {<\/span>\r\n            gzipOutputStream<\/span>.<\/span>write<\/span>(<\/span>data<\/span>);<\/span>\r\n            gzipOutputStream<\/span>.<\/span>finish<\/span>();<\/span>\r\n            return<\/span> byteArrayOutputStream<\/span>.<\/span>toByteArray<\/span>();<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
import<\/span> java.io.ByteArrayInputStream<\/span>;<\/span>\r\nimport<\/span> java.io.ByteArrayOutputStream<\/span>;<\/span>\r\nimport<\/span> java.io.IOException<\/span>;<\/span>\r\nimport<\/span> java.io.InputStream<\/span>;<\/span>\r\nimport<\/span> java.nio.charset.StandardCharsets<\/span>;<\/span>\r\nimport<\/span> java.util.zip.GZIPInputStream<\/span>;<\/span>\r\n\r\nimport<\/span> org.slf4j.Logger<\/span>;<\/span>\r\nimport<\/span> org.slf4j.LoggerFactory<\/span>;<\/span>\r\nimport<\/span> org.springframework.http.HttpEntity<\/span>;<\/span>\r\nimport<\/span> org.springframework.http.HttpHeaders<\/span>;<\/span>\r\nimport<\/span> org.springframework.http.HttpMethod<\/span>;<\/span>\r\nimport<\/span> org.springframework.http.MediaType<\/span>;<\/span>\r\nimport<\/span> org.springframework.http.ResponseEntity<\/span>;<\/span>\r\nimport<\/span> org.springframework.web.client.RestTemplate<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> Main<\/span> {<\/span>\r\n\r\n    public<\/span> static<\/span> final<\/span> Logger<\/span> LOGGER<\/span> =<\/span> LoggerFactory<\/span>.<\/span>getLogger<\/span>(<\/span>Main<\/span>.<\/span>class<\/span>);<\/span>\r\n\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> throws<\/span> Exception<\/span> {<\/span>\r\n\r\n        RestTemplate<\/span> restTemplate<\/span> =<\/span> new<\/span> RestTemplate<\/span>();<\/span>\r\n\r\n\r\n        HttpHeaders<\/span> httpHeaders<\/span> =<\/span> new<\/span> HttpHeaders<\/span>();<\/span>\r\n        \/\/ Accept \u8868\u793a\u5ba2\u6237\u7aef\u652f\u6301\u4ec0\u4e48\u683c\u5f0f\u7684\u54cd\u5e94\u4f53<\/span>\r\n        httpHeaders<\/span>.<\/span>set<\/span>(<\/span>HttpHeaders<\/span>.<\/span>ACCEPT<\/span>,<\/span> MediaType<\/span>.<\/span>TEXT_PLAIN_VALUE<\/span>);<\/span>\r\n        \/\/ Accept-Encoding \u5934\uff0c\u8868\u793a\u5ba2\u6237\u7aef\u63a5\u6536gzip\u683c\u5f0f\u7684\u538b\u7f29<\/span>\r\n        httpHeaders<\/span>.<\/span>set<\/span>(<\/span>HttpHeaders<\/span>.<\/span>ACCEPT_ENCODING<\/span>,<\/span> \"gzip\"<\/span>);<\/span>\r\n\r\n        ResponseEntity<\/span><<\/span>byte<\/span>[]><\/span> responseEntity<\/span> =<\/span> restTemplate<\/span>.<\/span>exchange<\/span>(<\/span>\"http:\/\/localhost\/test\"<\/span>,<\/span> HttpMethod<\/span>.<\/span>GET<\/span>,<\/span> new<\/span> HttpEntity<\/span><>(<\/span>httpHeaders<\/span>),<\/span> byte<\/span>[].<\/span>class<\/span>);<\/span>\r\n\r\n        if<\/span> (!<\/span>responseEntity<\/span>.<\/span>getStatusCode<\/span>().<\/span>is2xxSuccessful<\/span>())<\/span> {<\/span>\r\n            \/\/ TODO \u975e200\u54cd\u5e94<\/span>\r\n        }<\/span>\r\n\r\n        \/\/ \u83b7\u53d6\u670d\u52a1\u5668\u54cd\u5e94\u4f53\u7f16\u7801<\/span>\r\n        String<\/span> contentEncoding<\/span> =<\/span> responseEntity<\/span>.<\/span>getHeaders<\/span>().<\/span>getFirst<\/span>(<\/span>HttpHeaders<\/span>.<\/span>CONTENT_ENCODING<\/span>);<\/span>\r\n\r\n        if<\/span> (<\/span>\"gzip\"<\/span>.<\/span>equals<\/span>(<\/span>contentEncoding<\/span>))<\/span> {<\/span> \/\/ gzip\u7f16\u7801<\/span>\r\n            \/\/ gzip\u89e3\u538b\u670d\u52a1\u5668\u7684\u54cd\u5e94\u4f53<\/span>\r\n            byte<\/span>[]<\/span> data<\/span> =<\/span> unGZip<\/span>(<\/span>new<\/span> ByteArrayInputStream<\/span>(<\/span>responseEntity<\/span>.<\/span>getBody<\/span>()));<\/span>\r\n\r\n            LOGGER<\/span>.<\/span>info<\/span>(<\/span>new<\/span> String<\/span>(<\/span>data<\/span>,<\/span> StandardCharsets<\/span>.<\/span>UTF_8<\/span>));<\/span>\r\n        }<\/span> else<\/span> {<\/span>\r\n            \/\/ TODO \u5176\u4ed6\u7684\u7f16\u7801<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n\r\n    \/**\r\n     * Gzip\u89e3\u538b\u7f29\r\n     * @param inputStream\r\n     * @return\r\n     * @throws IOException\r\n     *\/<\/span>\r\n    public<\/span> static<\/span> byte<\/span>[]<\/span> unGZip<\/span>(<\/span>InputStream<\/span> inputStream<\/span>)<\/span> throws<\/span> IOException<\/span> {<\/span>\r\n        ByteArrayOutputStream<\/span> byteArrayOutputStream<\/span> =<\/span> new<\/span> ByteArrayOutputStream<\/span>();<\/span>\r\n        try<\/span> (<\/span>GZIPInputStream<\/span> gzipInputStream<\/span> =<\/span> new<\/span> GZIPInputStream<\/span>(<\/span>inputStream<\/span>))<\/span> {<\/span>\r\n            byte<\/span>[]<\/span> buf<\/span> =<\/span> new<\/span> byte<\/span>[<\/span>4096<\/span>];<\/span>\r\n            int<\/span> len<\/span> =<\/span> -<\/span>1<\/span>;<\/span>\r\n            while<\/span> ((<\/span>len<\/span> =<\/span> gzipInputStream<\/span>.<\/span>read<\/span>(<\/span>buf<\/span>,<\/span> 0<\/span>,<\/span> buf<\/span>.<\/span>length<\/span>))<\/span> !=<\/span> -<\/span>1<\/span>)<\/span> {<\/span>\r\n                byteArrayOutputStream<\/span>.<\/span>write<\/span>(<\/span>buf<\/span>,<\/span> 0<\/span>,<\/span> len<\/span>);<\/span>\r\n            }<\/span>\r\n            return<\/span> byteArrayOutputStream<\/span>.<\/span>toByteArray<\/span>();<\/span>\r\n        }<\/span> finally<\/span> {<\/span>\r\n            byteArrayOutputStream<\/span>.<\/span>close<\/span>();<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u4ee5\u4e0a\uff01 !)<\/p>\n
\u4ee5\u4e0a\u4e00\u5207\uff01 !)<\/p>\n
\u524d\u6587\u6240\u8ff0\uff01 !)<\/p>\n
\u5c3d\u4e0a\u8ff0\u6240\u8bf4\uff01 su\u01d2 shu\u014d!)<\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff01 !)<\/p>\n
\u4e0a\u8ff0\uff01 !)<\/p>\n","protected":false},"excerpt":{"rendered":"
\u7528Java\u5b9e\u73b0gzip\u3002 import java.io.ByteArrayOutputStream; impo […]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-31483","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u7528Java\u5b9e\u73b0gzip - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u7528java\u5b9e\u73b0gzip\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u7528Java\u5b9e\u73b0gzip\" \/>\n<meta property=\"og:description\" content=\"\u7528Java\u5b9e\u73b0gzip\u3002 import java.io.ByteArrayOutputStream; impo […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u7528java\u5b9e\u73b0gzip\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-18T00:52:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-28T22:10:42+00:00\" \/>\n<meta name=\"author\" content=\"\u6e05, \u626c\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u6e05, \u626c\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e5%ae%9e%e7%8e%b0gzip%e3%80%82\/\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e5%ae%9e%e7%8e%b0gzip%e3%80%82\/\",\"name\":\"\u7528Java\u5b9e\u73b0gzip - Blog - Silicon Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-07-18T00:52:43+00:00\",\"dateModified\":\"2024-04-28T22:10:42+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e5%ae%9e%e7%8e%b0gzip%e3%80%82\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e5%ae%9e%e7%8e%b0gzip%e3%80%82\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e5%ae%9e%e7%8e%b0gzip%e3%80%82\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u7528Java\u5b9e\u73b0gzip\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog - Silicon Cloud\",\"description\":\"\",\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/cb5556d2501da73d864cac945e8d9461\",\"name\":\"\u6e05, \u626c\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/32a4239de8ff29adace466261d309424a1e5fe9f7e3036bf89fe03f2e3dbe717?s=96&d=mm&r=g\",\"caption\":\"\u6e05, \u626c\"},\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/author\/qingyang\/\"},{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e7%94%a8java%e5%ae%9e%e7%8e%b0gzip%e3%80%82\/#local-main-organization-logo\",\"url\":\"\",\"contentUrl\":\"\",\"caption\":\"Blog - Silicon Cloud\"}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"\u7528Java\u5b9e\u73b0gzip - Blog - Silicon Cloud","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.silicloud.com\/zh\/blog\/\u7528java\u5b9e\u73b0gzip\u3002\/","og_locale":"zh_CN","og_type":"article","og_title":"\u7528Java\u5b9e\u73b0gzip","og_description":"\u7528Java\u5b9e\u73b0gzip\u3002 import java.io.ByteArrayOutputStream; 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