{"id":312,"date":"2020-12-15T15:36:58","date_gmt":"2020-12-15T07:36:58","guid":{"rendered":"http:\/\/blog.refusea.com\/?p=312"},"modified":"2020-12-15T15:39:07","modified_gmt":"2020-12-15T07:39:07","slug":"%e7%94%a8-httpservletrequestwrapper-%e5%ae%9a%e5%88%b6%e5%ae%a2%e6%88%b7%e7%ab%af%e8%af%b7%e6%b1%82%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/refusea.com\/?p=312","title":{"rendered":"\u7528 HttpServletRequestWrapper \u5b9a\u5236\u5ba2\u6237\u7aef\u8bf7\u6c42\u53c2\u6570"},"content":{"rendered":"<h2>\u4ecb\u7ecd<\/h2>\n<ul>\n<li><code>HttpServletRequestWrapper<\/code> \u5b9e\u73b0\u4e86 <code>HttpServletRequest<\/code> \u63a5\u53e3\uff0c\u53ef\u4ee5\u8ba9\u5f00\u53d1\u4eba\u5458\u5f88\u65b9\u4fbf\u7684\u6539\u9020\u53d1\u9001\u7ed9 <code>Servlet<\/code> \u7684\u8bf7\u6c42<\/li>\n<li>\u5e94\u7528\u4e86\u88c5\u9970\u6a21\u5f0f<\/li>\n<li>\u4e00\u822c\u8981\u548c <code>Filter<\/code> \u914d\u5408\u5e94\u7528<\/li>\n<\/ul>\n<h2>\u5e94\u7528\u573a\u666f<\/h2>\n<p>\u4e4b\u524d\u7684\u7a0b\u5e8f\uff0c\u5ba2\u6237\u7aef\u660e\u6587\u4f20\u9012\u4e86 <code>imei<\/code>\uff0c\u73b0\u5728\u4e3a\u4e86\u4fdd\u62a4\u7528\u6237\u9690\u79c1\uff0c\u9700\u8981\u5c06 <code>imei<\/code> \u52a0\u5bc6\u4f20\u8f93\u3002\u63a5\u53e3\u65b0\u589e\u4e86\u4e2a <code>deviceId<\/code> \u53c2\u6570\uff0c\u7531 <code>imei<\/code> \u548c <code>sn<\/code> \u62fc\u63a5\u5e76\u52a0\u5bc6\u800c\u6765\u3002<\/p>\n<p>\u8fd9\u6837\u5bfc\u81f4\u540e\u53f0\u670d\u52a1\u9700\u8981\u4fee\u6539\u6240\u6709\u63a5\u6536 <code>imei<\/code> \u53c2\u6570\u7684\u4ee3\u7801\uff0c\u6709\u6ca1\u6709\u4e00\u79cd\u529e\u6cd5\u53ef\u4ee5\u4f7f\u53d7\u5f71\u54cd\u7684\u63a5\u53e3\u4e0d\u8fdb\u884c\u4efb\u4f55\u6539\u52a8\u5462\uff1f<\/p>\n<p>\u53ef\u4ee5\u901a\u8fc7 <code>HttpServletRequestWrapper<\/code> \u5c06\u52a0\u5bc6\u7684 <code>DeviceId<\/code> \u89e3\u5bc6\uff0c\u5e76\u89e3\u6790\u51fa\u5176\u4e2d\u7684 <code>imei<\/code> \u548c <code>sn<\/code>\uff0c\u540c\u65f6\u5728\u5ba2\u6237\u7aef\u8bf7\u6c42\u91cc\u6dfb\u52a0\u8fd9 2 \u4e2a\u53c2\u6570\uff0c\u8fd9\u6837\u539f\u6709\u7684\u4ee3\u7801\u53ef\u4ee5\u4e0d\u505a\u4efb\u4f55\u4fee\u6539<\/p>\n<pre><code class=\"language-java\">deviceId = hex(rc4(imei + &#039;_&#039; + sn))<\/code><\/pre>\n<h2>\u793a\u4f8b<\/h2>\n<p>\u5c31\u4ee5\u4e0a\u9762\u6240\u8bf4\u7684\u89e3\u5bc6 DeviceId \u4e3a\u4f8b<\/p>\n<h3>web.xml \u914d\u7f6e<\/h3>\n<p>\u6dfb\u52a0\u4e00\u4e2a\u89e3\u6790 <code>DeviceId<\/code> \u7684 <code>Filter<\/code><\/p>\n<pre><code class=\"language-xml\">&lt;!-- \u89e3\u6790\u52a0\u5bc6\u7684 deviceId \u5f97\u5230 imei \u548c sn --&gt;\n&lt;filter&gt;\n    &lt;filter-name&gt;deviceIdParseFilter&lt;\/filter-name&gt;\n    &lt;filter-class&gt;com.refusea.app.common.DeviceIdParseFilter&lt;\/filter-class&gt;\n    &lt;init-param&gt;\n        &lt;param-name&gt;encoding&lt;\/param-name&gt;\n        &lt;param-value&gt;UTF-8&lt;\/param-value&gt;\n    &lt;\/init-param&gt;\n    &lt;init-param&gt;\n        &lt;param-name&gt;forceEncoding&lt;\/param-name&gt;\n        &lt;param-value&gt;true&lt;\/param-value&gt;\n    &lt;\/init-param&gt;\n&lt;\/filter&gt;\n&lt;filter-mapping&gt;\n    &lt;filter-name&gt;deviceIdParseFilter&lt;\/filter-name&gt;\n    &lt;url-pattern&gt;*.do&lt;\/url-pattern&gt;\n&lt;\/filter-mapping&gt;<\/code><\/pre>\n<h3>Filter \u4ee3\u7801<\/h3>\n<pre><code class=\"language-java\">public class DeviceIdParseFilter implements Filter {\n\n    private static final String KEY = &quot;1234567890&quot;;\n    private static final Logger log = Logger.getLogger(DeviceIdParseFilter.class);\n    private static final String[] DEFAULT_RESULT = {&quot;&quot;,&quot;&quot;};\n\n    @Override\n    public void init(FilterConfig filterConfig) throws ServletException {\n\n    }\n\n    @Override\n    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {\n        String deviceId = request.getParameter(&quot;deviceId&quot;);\n        if (deviceId != null &amp;&amp; deviceId.length() &gt; 0) {\n            String[] result = parseDeviceId(deviceId);\n            DeviceIdParseRequest req = new DeviceIdParseRequest((HttpServletRequest) request, result[0], result[1]);\n            chain.doFilter(req, response);\n        } else {\n            chain.doFilter(request, response);\n        }\n    }\n\n    \/**\n     * &lt;pre&gt;\n     * \u4ece deviceId \u91cc\u89e3\u6790\u51fa imei \u548c sn\n     *\n     * imei = result[0]\n     * sn   = result[1]\n     * &lt;\/pre&gt;\n     *\n     * @param deviceId\n     * @return\n     *\/\n    private static final String[] parseDeviceId(String deviceId) {\n        try {\n            String src = Rc4Util.decrypt(deviceId, KEY);\n            if (src.indexOf(&#039;_&#039;) &gt;= 0) {\n                return src.split(&quot;_&quot;);\n            }\n        } catch (Exception e) {\n            log.error(e, e);\n        }\n        return DEFAULT_RESULT;\n    }\n\n    @Override\n    public void destroy() {\n    }\n}<\/code><\/pre>\n<p>\u8fd9\u4e2a <code>Filter<\/code> \u4f1a\u5c06\u5305\u542b <code>deviceId<\/code> \u53c2\u6570\u7684\u8bf7\u6c42\u8fdb\u884c\u5982\u4e0b\u5904\u7406<\/p>\n<ol>\n<li>\u5c06 <code>deviceId<\/code> \u7684\u503c\u7528 <code>RC4<\/code> \u8fdb\u884c\u89e3\u5bc6<\/li>\n<li>\u4ece\u89e3\u5bc6\u51fa\u6765\u7684 <code>deviceId<\/code> \u91cc\u89e3\u6790\u51fa <code>imei<\/code> \u548c <code>sn<\/code><\/li>\n<li>\u5c06\u8bf7\u6c42\u6539\u9020\u6210 <code>DeviceIdParseRequest<\/code>\uff0c\u8fd9\u5c31\u662f\u6211\u4eec\u7684 <code>HttpServletRequestWrapper<\/code><\/li>\n<\/ol>\n<p>\u800c\u4e0d\u5305\u542b <code>deviceId<\/code> \u53c2\u6570\u7684\u8bf7\u6c42\u4e0d\u505a\u4efb\u4f55\u5904\u7406<\/p>\n<h3>HttpServletRequestWrapper \u4ee3\u7801<\/h3>\n<pre><code class=\"language-java\">public class DeviceIdParseRequest extends HttpServletRequestWrapper {\n\n    private String imei;\n    private String sn;\n\n    \/**\n     * @param request\n     *\/\n    public DeviceIdParseRequest(HttpServletRequest request) {\n        super(request);\n        this.imei = &quot;&quot;;\n        this.sn = &quot;&quot;;\n    }\n\n    \/**\n     * @param request\n     * @param imei\n     * @param sn\n     *\/\n    public DeviceIdParseRequest(HttpServletRequest request, String imei, String sn) {\n        super(request);\n        this.imei = imei;\n        this.sn = sn;\n    }\n\n    @Override\n    public String getParameter(String name) {\n        if (&quot;imei&quot;.equals(name)) {\n            return imei;\n        } else if (&quot;sn&quot;.equals(name)) {\n            return sn;\n        } else {\n            return super.getParameter(name);\n        }\n    }\n\n    @Override\n    public String[] getParameterValues(String name) {\n        if (&quot;imei&quot;.equals(name)) {\n            return new String[] { imei };\n        } else if (&quot;sn&quot;.equals(name)) {\n            return new String[] { sn };\n        } else {\n            return super.getParameterValues(name);\n        }\n    }\n}<\/code><\/pre>\n<p>\u8fd9\u91cc\u9488\u5bf9 <code>imei<\/code> \u548c <code>sn<\/code> \u8fdb\u884c\u4e86\u7279\u6b8a\u5904\u7406\uff0c\u8fd4\u56de\u7684\u4e0d\u662f\u5ba2\u6237\u7aef\u63d0\u4ea4\u7684\u53c2\u6570\uff0c\u800c\u662f\u5728 <code>Filter<\/code> \u91cc\u901a\u8fc7\u89e3\u6790 <code>deviceId<\/code> \u5f97\u5230\u7684 <code>imei<\/code> \u548c <code>sn<\/code><\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f<\/p>\n<ul>\n<li>\u5982\u679c\u7528 <code>request.getParameter()<\/code> \u83b7\u53d6\u5ba2\u6237\u7aef\u8bf7\u6c42\u53c2\u6570\u7684\u503c\uff0c\u90a3\u4e48\u53ea\u9700\u8981\u91cd\u5199\u8be5\u65b9\u6cd5\u5c31\u884c\u4e86<\/li>\n<li>\u5982\u679c\u7528 SpringMVC \u7684 <code>@RequestParam<\/code> \u6ce8\u89e3\u6765\u83b7\u53d6\u8bf7\u6c42\u53c2\u6570\u7684\u503c\uff0c\u90a3\u4e48\u9700\u8981\u91cd\u5199 <code>getParameterValues<\/code> \u65b9\u6cd5\uff1a\u56e0\u4e3a SpringMVC \u662f\u7528\u8fd9\u4e2a\u65b9\u6cd5\u6765\u83b7\u53d6\u53c2\u6570\u503c\u7684<\/li>\n<\/ul>\n<h3>\u8fd0\u884c\u7ed3\u679c<\/h3>\n<p>\u7528\u4e8e\u6d4b\u8bd5\u7684 controller<\/p>\n<pre><code class=\"language-java\">@Controller\n@RequestMapping(&quot;\/api\/&quot;)\npublic class TestController {\n\n    @ResponseBody\n    @RequestMapping(&quot;test.do&quot;)\n    public Result test(String deviceId, String imei, String sn) {\n        Map&lt;String, String&gt; map = new HashMap&lt;&gt;();\n        map.put(&quot;deviceId&quot;, deviceId);\n        map.put(&quot;imei&quot;, imei);\n        map.put(&quot;sn&quot;, sn);\n        return new Result(map);\n    }\n\n}<\/code><\/pre>\n<p>\u8fd9\u4e2a\u6d4b\u8bd5\u7c7b\u628a\u63a5\u6536\u5230\u7684\u53c2\u6570\u76f4\u63a5\u8fd4\u56de<\/p>\n<p><strong>\u8bf7\u6c42\u53c2\u6570\u4e0d\u5305\u542b <code>deviceId<\/code><\/strong><br \/>\n\u8bf7\u6c42 url<\/p>\n<pre><code>http:\/\/browser.refusea.com\/api\/test.do?reqno=123456&amp;imei=imei&amp;sn=1001&amp;model=mx6&amp;os=flyme6&amp;ver=1.0.0&amp;locale=en_US<\/code><\/pre>\n<p>\u8fd4\u56de\u7ed3\u679c<\/p>\n<pre><code class=\"language-json\">{\n    &quot;code&quot;: &quot;200&quot;,\n    &quot;message&quot;: &quot;&quot;,\n    &quot;redirect&quot;: &quot;&quot;,\n    &quot;value&quot;: {\n        &quot;sn&quot;: &quot;1001&quot;,\n        &quot;imei&quot;: &quot;imei&quot;,\n        &quot;deviceId&quot;: null\n    }\n}<\/code><\/pre>\n<p><strong>\u8bf7\u6c42\u53c2\u6570\u5305\u542b <code>deviceId<\/code><\/strong><br \/>\n\u8bf7\u6c42 url<\/p>\n<pre><code>http:\/\/browser.refusea.com\/api\/test.do?reqno=123456&amp;sn=1001&amp;model=mx6&amp;os=flyme6&amp;ver=1.0.0&amp;locale=en_US&amp;deviceId=7cfbf5cbd70bcf1c006d7d0aa77688518444497a2b45683ea41ce690e92d6d38<\/code><\/pre>\n<p>\u8fd4\u56de\u7ed3\u679c<\/p>\n<pre><code class=\"language-json\">{\n    &quot;code&quot;: &quot;200&quot;,\n    &quot;message&quot;: &quot;&quot;,\n    &quot;redirect&quot;: &quot;&quot;,\n    &quot;value&quot;: {\n        &quot;sn&quot;: &quot;111&quot;,\n        &quot;imei&quot;: &quot;org.testng.annotations.Test;&quot;,\n        &quot;deviceId&quot;: &quot;7cfbf5cbd70bcf1c006d7d0aa77688518444497a2b45683ea41ce690e92d6d38&quot;\n    }\n}<\/code><\/pre>\n<p>\u53ef\u4ee5\u770b\u5230<\/p>\n<ul>\n<li>\u8bf7\u6c42\u53c2\u6570\u91cc\u4e0d\u5b58\u5728\u7684 <code>imei<\/code> \u80fd\u83b7\u53d6\u5230\u503c<\/li>\n<li>\u8bf7\u6c42\u53c2\u6570\u91cc\u5b58\u5728\u7684 <code>sn<\/code> \u503c\u88ab\u4fee\u6539\u4e86<\/li>\n<\/ul>\n<h2>\u9644\u5f55<\/h2>\n<p><code>deviceId<\/code> \u7684\u52a0\u89e3\u5bc6\u7528\u5230\u4e86 <code>RC4<\/code> \u7b97\u6cd5\uff0c\u4e0b\u9762\u662f\u76f8\u5e94\u7684\u4ee3\u7801<\/p>\n<pre><code class=\"language-java\">import org.apache.commons.codec.DecoderException;\nimport org.apache.commons.codec.binary.Hex;\nimport org.bouncycastle.crypto.engines.RC4Engine;\nimport org.bouncycastle.crypto.params.KeyParameter;\n\npublic class Rc4Util {\n\n    \/**\n     * \u5c06\u660e\u6587\u7528 rc4 \u52a0\u5bc6\u5e76\u8fd4\u56de 16 \u8fdb\u5236\u7f16\u7801\u683c\u5f0f\u7684\u5bc6\u6587\n     *\n     * @param src\n     * @param key\n     * @return\n     *\/\n    public static final String encrypt(String src, String key) {\n        RC4Engine rc4 = new RC4Engine();\n        rc4.init(true, new KeyParameter(key.getBytes()));\n        byte[] in = src.getBytes();\n        int len = in.length;\n        byte[] out = new byte[len];\n        rc4.processBytes(in, 0, len, out, 0);\n        return Hex.encodeHexString(out);\n    }\n\n    \/**\n     * \u5c06 16 \u8fdb\u5236\u7f16\u7801\u683c\u5f0f\u7684\u5bc6\u6587\u89e3\u5bc6\n     *\n     * @param src\n     * @param key\n     * @return\n     *\/\n    public static final String decrypt(String src, String key) {\n        RC4Engine rc4 = new RC4Engine();\n        rc4.init(false, new KeyParameter(key.getBytes()));\n        byte[] in;\n        try {\n            in = Hex.decodeHex(src.toCharArray());\n        } catch (DecoderException e) {\n            throw new RuntimeException(e);\n        }\n        int len = in.length;\n        byte[] out = new byte[len];\n        rc4.processBytes(in, 0, len, out, 0);\n        return new String(out);\n    }\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u4ecb\u7ecd HttpServletRequestWrapper \u5b9e\u73b0\u4e86 HttpServletRequest \u63a5\u53e3\uff0c [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[33],"class_list":["post-312","post","type-post","status-publish","format-standard","hentry","category-java","tag-httpservletrequestwrapper"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u7528 HttpServletRequestWrapper \u5b9a\u5236\u5ba2\u6237\u7aef\u8bf7\u6c42\u53c2\u6570 - \u62d2\u6d77\u7a7a\u95f4<\/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:\/\/refusea.com\/?p=312\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"refusea.com\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" 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