{"id":593,"date":"2024-11-07T19:22:52","date_gmt":"2024-11-07T11:22:52","guid":{"rendered":"https:\/\/www.ikaros.love\/?p=593"},"modified":"2024-11-07T19:28:12","modified_gmt":"2024-11-07T11:28:12","slug":"java-native-%e6%9c%ac%e5%9c%b0%e6%96%b9%e6%b3%95%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/www.ikaros.love\/?p=593","title":{"rendered":"java native \u672c\u5730\u65b9\u6cd5\u8be6\u89e3"},"content":{"rendered":"\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"543\" height=\"543\" src=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/79.png\" alt=\"\" class=\"wp-image-594\" srcset=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/79.png 543w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/79-300x300.png 300w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/79-150x150.png 150w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/79-200x200.png 200w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/><\/figure>\n\n\n\n<p>\u642c\u8fd0\u81ea\u5982\u4e0b\u8fde\u63a5\uff0c\u672c\u6587\u7ae0\u4f5c\u7528\u642c\u8fd0\u5907\u4efd\u907f\u514d\u5931\u6548<\/p>\n\n\n\n<p><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html\">\u624b\u628a\u624b\u6559\u4f60\u7528 C\u8bed\u8a00\u5b9e\u73b0 Java native \u672c\u5730\u65b9\u6cd5 | \u4e8c\u54e5\u7684Java\u8fdb\u9636\u4e4b\u8def<\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"_1\u3001jni-java-native-interface\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_1%E3%80%81jni-java-native-interface\"><strong>1\u3001JNI\uff1aJava Native Interface<\/strong><\/a><\/h3>\n\n\n\n<p>\u5728\u4ecb\u7ecd native \u4e4b\u524d\uff0c\u6211\u4eec\u5148\u4e86\u89e3\u4ec0\u4e48\u662f JNI\u3002<\/p>\n\n\n\n<p>\u4e00\u822c\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u5b8c\u5168\u53ef\u4ee5\u4f7f\u7528 Java \u8bed\u8a00\u7f16\u5199\u7a0b\u5e8f\uff0c\u4f46\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0cJava \u53ef\u80fd\u6ee1\u8db3\u4e0d\u4e86\u9700\u6c42\uff0c\u6216\u8005\u4e0d\u80fd\u66f4\u597d\u7684\u6ee1\u8db3\u9700\u6c42\uff0c\u6bd4\u5982\uff1a<\/p>\n\n\n\n<ul>\n<li>\u2460\u3001\u6807\u51c6\u7684 Java \u7c7b\u5e93\u4e0d\u652f\u6301\u3002<\/li>\n\n\n\n<li>\u2461\u3001\u6211\u4eec\u5df2\u7ecf\u7528\u53e6\u4e00\u79cd\u8bed\u8a00\uff0c\u6bd4\u5982\u8bf4 C\/C++ \u7f16\u5199\u4e86\u4e00\u4e2a\u7c7b\u5e93\uff0c\u5982\u4f55\u7528 Java \u4ee3\u7801\u8c03\u7528\u5462\uff1f<\/li>\n\n\n\n<li>\u2462\u3001\u67d0\u4e9b\u8fd0\u884c\u6b21\u6570\u7279\u522b\u591a\u7684\u65b9\u6cd5\uff0c\u4e3a\u4e86\u52a0\u5feb\u6027\u80fd\uff0c\u9700\u8981\u7528\u66f4\u63a5\u8fd1\u786c\u4ef6\u7684\u8bed\u8a00\uff08\u6bd4\u5982\u6c47\u7f16\uff09\u7f16\u5199\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u4e0a\u9762\u8fd9\u4e09\u79cd\u9700\u6c42\uff0c\u8bf4\u5230\u5e95\u5c31\u662f\u5982\u4f55\u7528 Java \u4ee3\u7801\u8c03\u7528\u4e0d\u540c\u8bed\u8a00\u7f16\u5199\u7684\u4ee3\u7801\u3002\u90a3\u4e48 JNI \u5e94\u8fd0\u800c\u751f\u4e86\u3002<\/p>\n\n\n\n<p>\u4ece Java 1.1 \u5f00\u59cb\uff0cJava Native Interface (JNI)\u6807\u51c6\u5c31\u6210\u4e3a Java \u5e73\u53f0\u7684\u4e00\u90e8\u5206\uff0c\u5b83\u5141\u8bb8 Java \u4ee3\u7801\u548c\u5176\u4ed6\u8bed\u8a00\u7f16\u5199\u7684\u4ee3\u7801\u8fdb\u884c\u4ea4\u4e92\u3002<\/p>\n\n\n\n<p>JNI \u4e00\u5f00\u59cb\u662f\u4e3a\u4e86\u672c\u5730\u5df2\u7f16\u8bd1\u8bed\u8a00\uff0c\u5c24\u5176\u662f C \u548c C++\u800c\u8bbe\u8ba1\u7684\uff0c\u4f46\u662f\u5b83\u5e76\u4e0d\u59a8\u788d\u4f60\u4f7f\u7528\u5176\u4ed6\u8bed\u8a00\uff0c\u53ea\u8981\u8c03\u7528\u7ea6\u5b9a\u53d7\u652f\u6301\u5c31\u53ef\u4ee5\u4e86\u3002\u4f7f\u7528 Java \u4e0e\u672c\u5730\u5df2\u7f16\u8bd1\u7684\u4ee3\u7801\u4ea4\u4e92\uff0c\u901a\u5e38\u4f1a\u4e27\u5931\u5e73\u53f0\u53ef\u79fb\u690d\u6027\uff0c\u4f46\u662f\uff0c\u6709\u4e9b\u60c5\u51b5\u4e0b\u8fd9\u6837\u505a\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\uff0c\u751a\u81f3\u662f\u5fc5\u987b\u7684\uff0c\u6bd4\u5982\uff0c\u4f7f\u7528\u4e00\u4e9b\u65e7\u7684\u5e93\uff0c\u4e0e\u786c\u4ef6\u3001\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u884c\u4ea4\u4e92\uff0c\u6216\u8005\u4e3a\u4e86\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6027\u80fd\u3002JNI \u6807\u51c6\u81f3\u5c11\u4fdd\u8bc1\u672c\u5730\u4ee3\u7801\u80fd\u5de5\u4f5c\u80fd\u5728\u4efb\u4f55 Java \u865a\u62df\u673a\u5b9e\u73b0\u4e0b\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"312\" src=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-11-1024x312.png\" alt=\"\" class=\"wp-image-597\" srcset=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-11-1024x312.png 1024w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-11-300x91.png 300w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-11-768x234.png 768w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-11-670x204.png 670w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-11.png 1176w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u901a\u8fc7 JNI\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7 Java \u7a0b\u5e8f\uff08\u4ee3\u7801\uff09\u8c03\u7528\u5230\u64cd\u4f5c\u7cfb\u7edf\u76f8\u5173\u7684\u6280\u672f\u5b9e\u73b0\u7684\u5e93\u51fd\u6570\uff0c\u4ece\u800c\u4e0e\u5176\u4ed6\u6280\u672f\u548c\u7cfb\u7edf\u4ea4\u4e92\uff1b\u540c\u65f6\u5176\u4ed6\u6280\u672f\u548c\u7cfb\u7edf\u4e5f\u53ef\u4ee5\u901a\u8fc7 JNI \u63d0\u4f9b\u7684\u76f8\u5e94\u539f\u751f\u63a5\u53e3\u8c03\u7528 Java \u5e94\u7528\u7cfb\u7edf\u5185\u90e8\u5b9e\u73b0\u7684\u529f\u80fd\u3002<\/p>\n\n\n\n<p>\u201c\u4e8c\u54e5\uff0c\u7b49\u4e00\u4e0b\uff0cJava \u4e0d\u662f\u8de8\u5e73\u53f0\u7684\u5417\uff1f\u5982\u679c\u7528 JNI\uff0c\u90a3\u4e48\u7a0b\u5e8f\u4e0d\u5c31\u5931\u53bb\u4e86\u8de8\u5e73\u53f0\u7684\u4f18\u70b9\uff1f\u201d\u4e0d\u5f97\u4e0d\u8bf4\uff0c\u4e09\u59b9\u8fd9\u4e2a\u95ee\u9898\u8d77\u5230\u597d\u5904\u3002<\/p>\n\n\n\n<p>\u201c\u786e\u5b9e\u662f\u8fd9\u6837\u7684\u3002\u201d\u6211\u6390\u706d\u4e86\u4e2d\u6307\u548c\u65e0\u540d\u6307\u4e4b\u95f4\u7684\u70df\u5934\uff0c\u7ee7\u7eed\u5a13\u5a13\u9053\u6765\u3002<\/p>\n\n\n\n<p>JNI \u7684\u7f3a\u70b9\uff1a<\/p>\n\n\n\n<ul>\n<li>\u2460\u3001\u7a0b\u5e8f\u4e0d\u518d\u8de8\u5e73\u53f0\u3002\u8981\u60f3\u8de8\u5e73\u53f0\uff0c\u5fc5\u987b\u5728\u4e0d\u540c\u7684\u7cfb\u7edf\u73af\u5883\u4e0b\u91cd\u65b0\u7f16\u8bd1\u672c\u5730\u8bed\u8a00\u90e8\u5206\u3002<\/li>\n\n\n\n<li>\u2461\u3001\u7a0b\u5e8f\u4e0d\u518d\u662f\u7edd\u5bf9\u5b89\u5168\u7684\uff0c\u672c\u5730\u4ee3\u7801\u7684\u4e0d\u5f53\u4f7f\u7528\u53ef\u80fd\u5bfc\u81f4\u6574\u4e2a\u7a0b\u5e8f\u5d29\u6e83\u3002\u4e00\u4e2a\u901a\u7528\u89c4\u5219\u662f\uff0c\u4f60\u5e94\u8be5\u8ba9\u672c\u5730\u65b9\u6cd5\u96c6\u4e2d\u5728\u5c11\u6570\u51e0\u4e2a\u7c7b\u5f53\u4e2d\u3002\u8fd9\u6837\u5c31\u964d\u4f4e\u4e86 Java \u548c C\/C++ \u4e4b\u95f4\u7684\u8026\u5408\u6027\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u76ee\u524d\u6765\u8bb2\u4f7f\u7528 JNI \u7684\u7f3a\u70b9\u76f8\u5bf9\u4e8e\u4f18\u70b9\u8fd8\u662f\u53ef\u4ee5\u63a5\u53d7\u7684\uff0c\u53ef\u80fd\u540e\u9762\u968f\u7740 Java \u7684\u6280\u672f\u53d1\u5c55\uff0c\u6211\u4eec\u4e0d\u5728\u9700\u8981 JNI\uff0c\u4f46\u662f\u76ee\u524d JDK \u8fd8\u662f\u4e00\u76f4\u63d0\u4f9b\u4e86\u5bf9 JNI \u6807\u51c6\u7684\u652f\u6301\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"_2\u3001\u7528-c-\u8bed\u8a00\u7f16\u5199\u7a0b\u5e8f\u672c\u5730\u65b9\u6cd5\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_2%E3%80%81%E7%94%A8-c-%E8%AF%AD%E8%A8%80%E7%BC%96%E5%86%99%E7%A8%8B%E5%BA%8F%E6%9C%AC%E5%9C%B0%E6%96%B9%E6%B3%95\"><strong>2\u3001\u7528 C \u8bed\u8a00\u7f16\u5199\u7a0b\u5e8f\u672c\u5730\u65b9\u6cd5<\/strong><\/a><\/h3>\n\n\n\n<p>\u201c\u4e0a\u9762\u8bb2\u89e3\u4e86\u4ec0\u4e48\u662f JNI\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u5199\u4e2a\u4f8b\u5b50\uff1a\u5982\u4f55\u7528 Java \u4ee3\u7801\u8c03\u7528\u672c\u5730\u7684 C \u7a0b\u5e8f\u3002\u201d\u6211\u626d\u5934\u5bf9\u4e09\u59b9\u8bf4\uff0c\u201c\u4f60\u6ce8\u610f\ud83d\udce2\u770b\u3002\u201d<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p>\u5b98\u65b9\u6587\u6863\u5982\u4e0b\uff1a<a href=\"https:\/\/docs.oracle.com\/javase\/8\/docs\/technotes\/guides\/jni\/spec\/jniTOC.html\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/docs.oracle.com\/javase\/8\/docs\/technotes\/guides\/jni\/spec\/jniTOC.html<\/a><\/p>\n<\/blockquote>\n\n\n\n<p>\u6b65\u9aa4\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p>\u2460\u3001\u7f16\u5199\u5e26\u6709 native \u65b9\u6cd5\u7684 Java \u7c7b\uff0c\u751f\u6210.java \u6587\u4ef6\uff1b<\/p>\n\n\n\n<p>\u2461\u3001\u4f7f\u7528 javac \u547d\u4ee4\u7f16\u8bd1\u6240\u7f16\u5199\u7684 Java \u7c7b\uff0c\u751f\u6210.class \u6587\u4ef6\uff1b<\/p>\n\n\n\n<p>\u2462\u3001\u4f7f\u7528 javah -jni java \u7c7b\u540d \u751f\u6210\u6269\u5c55\u540d\u4e3a h \u7684\u5934\u6587\u4ef6\uff0c\u4e5f\u5373\u751f\u6210 .h \u6587\u4ef6\uff1b<\/p>\n\n\n\n<p>\u2463\u3001\u4f7f\u7528 C\/C++\uff08\u6216\u8005\u5176\u4ed6\u7f16\u7a0b\u60f3\u8bed\u8a00\uff09\u5b9e\u73b0\u672c\u5730\u65b9\u6cd5\uff0c\u521b\u5efa .h \u6587\u4ef6\u7684\u5b9e\u73b0\uff0c\u4e5f\u5c31\u662f\u521b\u5efa .cpp \u6587\u4ef6\u5b9e\u73b0.h \u6587\u4ef6\u4e2d\u7684\u65b9\u6cd5\uff1b<\/p>\n\n\n\n<p>\u2464\u3001\u5c06 C\/C++ \u7f16\u5199\u7684\u6587\u4ef6\u751f\u6210\u52a8\u6001\u8fde\u63a5\u5e93\uff0c\u751f\u6210 dll \u6587\u4ef6\uff1b<\/p>\n\n\n\n<p>\u4e0b\u9762\u6211\u4eec\u901a\u8fc7\u4e00\u4e2a HelloWorld \u7a0b\u5e8f\u7684\u8c03\u7528\u6765\u5b8c\u6210\u8fd9\u51e0\u4e2a\u6b65\u9aa4\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"_01-\u7f16\u5199\u5e26\u6709-native-\u65b9\u6cd5\u7684-java-\u7c7b-hellojni-java\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_01-%E7%BC%96%E5%86%99%E5%B8%A6%E6%9C%89-native-%E6%96%B9%E6%B3%95%E7%9A%84-java-%E7%B1%BB-hellojni-java\">01\uff09\u7f16\u5199\u5e26\u6709 native \u65b9\u6cd5\u7684 Java \u7c7b HelloJNI.java<\/a><\/h4>\n\n\n\n<p>\u5728&nbsp;<code>\/Users\/itwanger\/Documents\/Github\/javabetter\/testjni<\/code>&nbsp;\u76ee\u5f55\u4e0b\u521b\u5efa HelloJNI.java \u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>public class HelloJNI {\n    static {\n        System.loadLibrary(\"hello\"); \/\/ \u52a0\u8f7d\u540d\u4e3a libhello.dylib \u7684\u52a8\u6001\u94fe\u63a5\u5e93\n    }\n\n    \/\/ \u5b9a\u4e49\u672c\u5730\u65b9\u6cd5\n    private native void helloJNI();\n\n    public static void main(String&#91;] args) {\n        new HelloJNI().helloJNI(); \/\/ \u8c03\u7528\u672c\u5730\u65b9\u6cd5\n    }\n}<\/code><\/pre>\n\n\n\n<p><strong>PS\uff1a\u540e\u9762\u6267\u884c\u7684\u547d\u4ee4\u90fd\u5c06\u5728 testjni \u7684\u76ee\u5f55\u4e0b<\/strong><\/p>\n\n\n\n<p>\u89e3\u91ca\u4e00\u4e0b\u8fd9\u6bb5\u4ee3\u7801\uff1a<\/p>\n\n\n\n<p><code>private native void helloJNI()<\/code>\uff1a\u7528 native \u58f0\u660e\u7684\u65b9\u6cd5\u544a\u77e5 JVM \u8c03\u7528\u8be5\u65b9\u6cd5\u5728\u5916\u90e8\u5b9a\u4e49\uff0c\u4e5f\u5c31\u662f\u6211\u4eec\u4f1a\u7528 C \u8bed\u8a00\u53bb\u5b9e\u73b0\u3002<\/p>\n\n\n\n<p><code>System.loadLibrary(\"hello\")<\/code>\uff1a\u52a0\u8f7d\u52a8\u6001\u5e93\uff0c\u53c2\u6570 hello \u662f\u52a8\u6001\u5e93\u7684\u540d\u5b57\u3002\u6211\u4eec\u53ef\u4ee5\u8fd9\u6837\u7406\u89e3\uff1a\u7a0b\u5e8f\u4e2d\u7684\u65b9\u6cd5 helloJNI() \u5728\u7a0b\u5e8f\u4e2d\u6ca1\u6709\u5b9e\u73b0\uff0c\u4f46\u662f\u6211\u4eec\u4e0b\u9762\u8981\u8c03\u7528\u8fd9\u4e2a\u65b9\u6cd5\uff0c\u600e\u4e48\u529e\u5462\uff1f<\/p>\n\n\n\n<p>\u6211\u4eec\u5c31\u9700\u8981\u5bf9\u8fd9\u4e2a\u65b9\u6cd5\u8fdb\u884c\u521d\u59cb\u5316\uff0c\u6240\u4ee5\u7528\u4e86&nbsp;<a href=\"https:\/\/javabetter.cn\/oo\/static.html\" target=\"_blank\" rel=\"noreferrer noopener\">static \u4ee3\u7801\u5757\u8fdb\u884c\u521d\u59cb\u5316<\/a>\uff0c\u540e\u9762\u4f1a\u8bb2\u5230\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"_02-\u7f16\u8bd1-hellojni-java\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_02-%E7%BC%96%E8%AF%91-hellojni-java\">02\uff09\u7f16\u8bd1 HelloJNI.java<\/a><\/h4>\n\n\n\n<p>\u5728\u547d\u4ee4\u884c\u901a\u8fc7\u00a0<code>javac HelloJNI.java<\/code>\u00a0\u6765\u7f16\u8bd1\u6e90\u4ee3\u7801\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"267\" src=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-12-1024x267.png\" alt=\"\" class=\"wp-image-598\" srcset=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-12-1024x267.png 1024w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-12-300x78.png 300w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-12-768x200.png 768w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-12-670x175.png 670w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-12.png 1199w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"_03-\u4f7f\u7528-javah-jni-hellojni-\u751f\u6210\u6269\u5c55\u540d\u4e3a-h-\u7684\u5934\u6587\u4ef6\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_03-%E4%BD%BF%E7%94%A8-javah-jni-hellojni-%E7%94%9F%E6%88%90%E6%89%A9%E5%B1%95%E5%90%8D%E4%B8%BA-h-%E7%9A%84%E5%A4%B4%E6%96%87%E4%BB%B6\">03\uff09\u4f7f\u7528\u00a0<code>javah -jni HelloJNI<\/code>\u00a0\u751f\u6210\u6269\u5c55\u540d\u4e3a h \u7684\u5934\u6587\u4ef6<\/a><\/h4>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"303\" src=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-13-1024x303.png\" alt=\"\" class=\"wp-image-599\" srcset=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-13-1024x303.png 1024w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-13-300x89.png 300w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-13-768x227.png 768w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-13-670x198.png 670w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-13.png 1188w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<p>PS\uff1aJava 9 \u4ee5\u540e\uff0cjavah \u88ab\u5f03\u7528\uff0c\u53d6\u800c\u4ee3\u4e4b\u7684\u662f\u4f7f\u7528 -h \u9009\u9879\u6765\u751f\u6210\u5934\u6587\u4ef6\uff0c\u4f8b\u5982&nbsp;<code>javac -h . ClassName.java<\/code>\u3002<\/p>\n<\/blockquote>\n\n\n\n<p>\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u4f1a\u5728 HelloJNI.java \u6240\u5728\u76ee\u5f55\u4e0b\u751f\u6210\u4e00\u4e2a\u540d\u4e3a HelloJNI.h \u7684\u5934\u6587\u4ef6\u3002\u6253\u5f00 HelloJNI.h \u6587\u4ef6\uff0c\u53ef\u4ee5\u770b\u5230\u5982\u4e0b\u4ee3\u7801\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"822\" src=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-14-1024x822.png\" alt=\"\" class=\"wp-image-601\" srcset=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-14-1024x822.png 1024w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-14-300x241.png 300w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-14-768x617.png 768w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-14-670x538.png 670w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-14.png 1187w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>\u770b\u4e0d\u61c2\u6ca1\u5173\u7cfb\uff0c\u65e0\u6240\u8c13\uff0c\u76f4\u5230\u5b83\u662f\u81ea\u52a8\u751f\u6210\u7684\u5c31\u597d\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"_04-\u4f7f\u7528-c-\u8bed\u8a00\u5b9e\u73b0\u672c\u5730\u65b9\u6cd5\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_04-%E4%BD%BF%E7%94%A8-c-%E8%AF%AD%E8%A8%80%E5%AE%9E%E7%8E%B0%E6%9C%AC%E5%9C%B0%E6%96%B9%E6%B3%95\">04\uff09\u4f7f\u7528 C \u8bed\u8a00\u5b9e\u73b0\u672c\u5730\u65b9\u6cd5<\/a><\/h4>\n\n\n\n<p>\u521b\u5efa\u4e00\u4e2a C \u6587\u4ef6 HelloJNI.c\uff0c\u5b9e\u73b0\u672c\u5730\u65b9\u6cd5 sayHello\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>#include &lt;stdio.h&gt;\n#include &lt;jni.h&gt;\n#include \"HelloJNI.h\"\n\nJNIEXPORT void JNICALL Java_HelloJNI_helloJNI(JNIEnv *env, jobject obj) {\n    printf(\"Hello, JNI!\\n\");\n    return;\n}<\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f\uff0c\u8fd9\u91cc\u9700\u8981\u5f15\u5165 JNI \u5934\u6587\u4ef6\uff0c\u5e76\u4e14\u5b9e\u73b0\u7684\u65b9\u6cd5\u540d\u79f0\u9700\u8981\u4e0e\u5728 Java \u4e2d\u58f0\u660e\u7684\u540d\u79f0\u4e00\u81f4\uff08<code>HelloJNI_helloJNI<\/code>&nbsp;HelloJNI \u7c7b\u7684 helloJNI \u65b9\u6cd5\uff09\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"_05-\u7f16\u5199\u7f16\u8bd1\u811a\u672c-compile-sh\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_05-%E7%BC%96%E5%86%99%E7%BC%96%E8%AF%91%E8%84%9A%E6%9C%AC-compile-sh\">05\uff09\u7f16\u5199\u7f16\u8bd1\u811a\u672c compile.sh<\/a><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>#!\/bin\/bash\n\n# \u7f16\u8bd1 HelloJNI.c \u6587\u4ef6\ngcc -I\"$JAVA_HOME\/include\" -I\"$JAVA_HOME\/include\/darwin\" -shared -o libhello.dylib HelloJNI.c\n\n# \u628a\u751f\u6210\u7684 libhello.dylib \u6587\u4ef6\u62f7\u8d1d\u5230\u5f53\u524d\u76ee\u5f55\ncp libhello.dylib .<\/code><\/pre>\n\n\n\n<p>\u6ce8\u610f\u4e8b\u9879\uff1a<\/p>\n\n\n\n<ul>\n<li><code>$JAVA_HOME<\/code>&nbsp;\u662f JDK \u7684\u5b89\u88c5\u8def\u5f84\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u4fee\u6539\u3002<\/li>\n\n\n\n<li>\u5728 macOS \u4e0a\uff0c\u52a8\u6001\u94fe\u63a5\u5e93\uff08hello\uff09\u7684\u540e\u7f00\u662f .dylib\uff0c\u800c\u4e0d\u662f Linux \u4e0a\u7684 .so\u3002<\/li>\n<\/ul>\n\n\n\n<p>\u8fd9\u91cc\u7684 -I \u9009\u9879\u662f\u4e3a\u4e86\u544a\u8bc9\u7f16\u8bd1\u5668\u5934\u6587\u4ef6\u7684\u4f4d\u7f6e\uff0c<code>$JAVA_HOME<\/code>&nbsp;\u662f Java \u5b89\u88c5\u76ee\u5f55\u7684\u8def\u5f84\u3002<\/p>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"_06-\u6267\u884c\u7f16\u8bd1\u811a\u672c\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_06-%E6%89%A7%E8%A1%8C%E7%BC%96%E8%AF%91%E8%84%9A%E6%9C%AC\">06\uff09\u6267\u884c\u7f16\u8bd1\u811a\u672c<\/a><\/h4>\n\n\n\n<pre class=\"wp-block-code\"><code>sh compile.sh<\/code><\/pre>\n\n\n\n<p>\u6267\u884c\u5b8c\u6bd5\u540e\uff0c\u4f1a\u5728\u5f53\u524d\u76ee\u5f55\u4e0b\u751f\u6210\u4e00\u4e2a\u540d\u4e3a libhello.dylib \u7684\u52a8\u6001\u94fe\u63a5\u5e93\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"175\" src=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-15-1024x175.png\" alt=\"\" class=\"wp-image-602\" srcset=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-15-1024x175.png 1024w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-15-300x51.png 300w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-15-768x132.png 768w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-15-670x115.png 670w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-15.png 1191w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\" id=\"_07-\u8fd0\u884c-hellojni\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_07-%E8%BF%90%E8%A1%8C-hellojni\">07\uff09\u8fd0\u884c HelloJNI<\/a><\/h4>\n\n\n\n<p>\u6267\u884c<code>java HelloJNI<\/code>\u547d\u4ee4\u8fd0\u884c HelloJNI\uff0c\u5982\u679c\u4e00\u5207\u6b63\u5e38\uff0c\u5c31\u4f1a\u5728\u7ec8\u7aef\u4e0a\u8f93\u51fa Hello, JNI!\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1024\" height=\"108\" src=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-16-1024x108.png\" alt=\"\" class=\"wp-image-603\" srcset=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-16-1024x108.png 1024w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-16-300x32.png 300w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-16-768x81.png 768w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-16-670x71.png 670w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-16.png 1117w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"_3\u3001jni-\u8c03\u7528-c-\u7684\u6d41\u7a0b\u56fe\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_3%E3%80%81jni-%E8%B0%83%E7%94%A8-c-%E7%9A%84%E6%B5%81%E7%A8%8B%E5%9B%BE\"><strong>3\u3001JNI \u8c03\u7528 C \u7684\u6d41\u7a0b\u56fe<\/strong><\/a><\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" width=\"1016\" height=\"1024\" src=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-17-1016x1024.png\" alt=\"\" class=\"wp-image-604\" srcset=\"https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-17-1016x1024.png 1016w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-17-298x300.png 298w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-17-150x150.png 150w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-17-768x774.png 768w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-17-670x676.png 670w, https:\/\/www.ikaros.love\/wp-content\/uploads\/2024\/11\/image-17.png 1198w\" sizes=\"(max-width: 1016px) 100vw, 1016px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"_4\u3001native-\u5173\u952e\u5b57\"><a href=\"https:\/\/javabetter.cn\/oo\/native-method.html#_4%E3%80%81native-%E5%85%B3%E9%94%AE%E5%AD%97\"><strong>4\u3001native \u5173\u952e\u5b57<\/strong><\/a><\/h3>\n\n\n\n<p>\u201c\u4e09\u59b9\uff0c\u73b0\u5728\u5e94\u8be5\u77e5\u9053\u4ec0\u4e48\u662f native \u4e86\u5427\uff1f\u201d\u6211\u95ee\u4e09\u59b9\u3002<\/p>\n\n\n\n<p>\u201c\u55ef\u55ef\uff0c\u6211\u6765\u7b80\u8ff0\u4e00\u4e0b\uff0c\u4e8c\u54e5\u4f60\u770b\u770b\u6211\u8bf4\u7684\u662f\u5426\u6b63\u786e\u3002\u201d<\/p>\n\n\n\n<p>native \u7528\u6765\u4fee\u9970\u65b9\u6cd5\uff0c\u7528 native \u58f0\u660e\u7684\u65b9\u6cd5\u8868\u793a\u8be5\u65b9\u6cd5\u7684\u5b9e\u73b0\u5728\u5916\u90e8\u5b9a\u4e49\uff0c\u53ef\u4ee5\u7528\u4efb\u4f55\u8bed\u8a00\u53bb\u5b9e\u73b0\u5b83\uff0c\u6bd4\u5982\u8bf4 C\/C++\u3002 \u7b80\u5355\u5730\u8bb2\uff0c\u4e00\u4e2a native Method \u5c31\u662f\u4e00\u4e2a Java \u8c03\u7528\u975e Java \u4ee3\u7801\u7684\u63a5\u53e3\u3002<\/p>\n\n\n\n<p>native \u8bed\u6cd5\uff1a<\/p>\n\n\n\n<ul>\n<li>\u2460\u3001\u4fee\u9970\u65b9\u6cd5\u7684\u4f4d\u7f6e\u5fc5\u987b\u5728\u8fd4\u56de\u7c7b\u578b\u4e4b\u524d\uff0c\u548c\u5176\u4f59\u7684\u65b9\u6cd5\u63a7\u5236\u7b26\u524d\u540e\u5173\u7cfb\u4e0d\u53d7\u9650\u5236\u3002<\/li>\n\n\n\n<li>\u2461\u3001\u4e0d\u80fd\u7528 abstract \u4fee\u9970\uff0c\u4e5f\u6ca1\u6709\u65b9\u6cd5\u4f53\uff0c\u4e5f\u6ca1\u6709\u5de6\u53f3\u5927\u62ec\u53f7\u3002<\/li>\n\n\n\n<li>\u2462\u3001\u8fd4\u56de\u503c\u53ef\u4ee5\u662f\u4efb\u610f\u7c7b\u578b<\/li>\n<\/ul>\n\n\n\n<p>\u201c\u4e09\u59b9\uff0c\u4f60\u5b66\u7684\u4e0d\u9519\u561b\u3002\u201d\u6211\u5bf9\u4e09\u59b9\u7684\u5b66\u4e60\u80fd\u529b\u611f\u5230\u975e\u5e38\u7684\u6b23\u6170\uff0c\u201c<strong>\u6211\u4eec\u5728\u65e5\u5e38\u7f16\u7a0b\u4e2d\u770b\u5230 native \u4fee\u9970\u7684\u65b9\u6cd5\uff0c\u53ea\u9700\u8981\u77e5\u9053\u8fd9\u4e2a\u65b9\u6cd5\u7684\u4f5c\u7528\u662f\u4ec0\u4e48\uff0c\u81f3\u4e8e\u522b\u7684\u5c31\u4e0d\u7528\u7ba1\u4e86\uff0c\u64cd\u4f5c\u7cfb\u7edf\u4f1a\u7ed9\u6211\u4eec\u5b9e\u73b0\uff0c\u521d\u5b66\u7684\u65f6\u5019\u4e5f\u4e0d\u9700\u8981\u592a\u8fc7\u6df1\u5165<\/strong>\u3002\u201d<\/p>\n\n\n\n<blockquote class=\"wp-block-quote\">\n<ul>\n<li>Windows \u4e0b\u5b89\u88c5 gcc \u6559\u7a0b\uff1a<a href=\"https:\/\/blog.csdn.net\/altland\/article\/details\/63252757\" target=\"_blank\" rel=\"noreferrer noopener\">http:\/\/blog.csdn.net\/altland\/article\/details\/63252757<\/a><\/li>\n\n\n\n<li>native \u53c2\u8003\u94fe\u63a5\uff1a<a href=\"https:\/\/www.zhihu.com\/question\/28001771\/answer\/2049534464\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.zhihu.com\/question\/28001771\/answer\/2049534464<\/a><\/li>\n<\/ul>\n<\/blockquote>\n","protected":false},"excerpt":{"rendered":"<p>\u642c\u8fd0\u81ea\u5982\u4e0b\u8fde\u63a5\uff0c\u672c\u6587\u7ae0\u4f5c\u7528\u642c\u8fd0\u5907&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":594,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[147,173,172],"_links":{"self":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/593"}],"collection":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=593"}],"version-history":[{"count":4,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/593\/revisions"}],"predecessor-version":[{"id":605,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/posts\/593\/revisions\/605"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=\/wp\/v2\/media\/594"}],"wp:attachment":[{"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=593"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=593"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ikaros.love\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=593"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}