{"id":31077,"date":"2023-08-08T23:20:56","date_gmt":"2024-02-29T03:08:42","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e6%a8%a1%e5%9d%97\/"},"modified":"2025-08-12T22:12:32","modified_gmt":"2025-08-12T14:12:32","slug":"%e3%80%90java%e3%80%91%e6%a8%a1%e5%9d%97","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90java%e3%80%91%e6%a8%a1%e5%9d%97\/","title":{"rendered":"\u3010Java\u3011\u6a21\u5757"},"content":{"rendered":"<h1>\u6a21\u5757\u662f\u4ec0\u4e48\uff1f<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u4e0a\u4f4d\u6982\u5ff5<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u69cb\u6210<\/ul>\n<\/li>\n<\/ul>\n<p>\u30d1\u30c3\u30b1\u30fc\u30b8\u7fa4\u3068\u95a2\u9023\u3059\u308b\u30ea\u30bd\u30fc\u30b9<br \/>\n\u81ea\u8eab\u306e\u69cb\u6210\u60c5\u5831\u3092\u898f\u5b9a\u3059\u308b\u30e2\u30b8\u30e5\u30fc\u30eb\u5b9a\u7fa9\u30d5\u30a1\u30a4\u30eb<\/p>\n<h1>\u4f20\u7edf\u7684\u5305\u88c5\u95ee\u9898<\/p>\n<h2>\u65e0\u6cd5\u5728\u5305\u7ea7\u522b\u4e0a\u8bbe\u7f6e\u8bbf\u95ee\u6743\u9650<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e9\u30a4\u30d6\u30e9\u30ea\u5185\u90e8\u3067\u306e\u5229\u7528\u3092\u60f3\u5b9a\u3057\u305f\u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u5834\u5408\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u5916\u90e8\u304b\u3089\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044\u3088\u3046\u306b\u3057\u305f\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u3057\u304b\u3057\u5185\u90e8\u7528\u9014\u306epublic\u30af\u30e9\u30b9\u3092\u4e0d\u53ef\u8996\u306b\u3059\u308b\u624b\u6bb5\u306f\u306a\u3044<\/ul>\n<h2>.jar\u6587\u4ef6\u65e0\u6cd5\u8868\u793a\u4f9d\u8d56\u5173\u7cfb<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u8907\u6570\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3092.jar\u5f62\u5f0f\u306e\u5727\u7e2e\u30d5\u30a1\u30a4\u30eb\u3068\u3057\u3066\u307e\u3068\u3081\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u3068\u3057\u3066\u63d0\u4f9b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u3057\u304b\u3057.jar\u3067\u306f\u30e9\u30a4\u30d6\u30e9\u30ea\u9593\u306e\u4f9d\u5b58\u95a2\u4fc2\u306f\u8868\u73fe\u3067\u304d\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">.jar\u306e\u4e2d\u3067\u3069\u306e\u578b\u306eAPI\u304c\u5916\u90e8\u304b\u3089\u306e\u5229\u7528\u3092\u60f3\u5b9a\u3057\u3066\u3044\u308b\u306e\u304b\u3001\u52d5\u4f5c\u306e\u305f\u3081\u306b\u3069\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u304c\u5fc5\u8981\u304b\u308f\u304b\u3089\u306a\u3044<\/ul>\n<h3>\u5229\u7528\u6a21\u5757\u6765\u89e3\u51b3\uff01<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u7279\u5b9a\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3001\u30d5\u30ec\u30fc\u30e0\u30ef\u30fc\u30af\u3092\u30b0\u30eb\u30fc\u30d7\u306b\u3057\u3066\u675f\u306d\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u3055\u308c\u305f\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u306fpublic\u30af\u30e9\u30b9\u3082\u3088\u308a\u7d30\u304b\u306a\u7ba1\u7406\u304c\u53ef\u80fd<\/ul>\n<\/li>\n<\/ul>\n<p>\u73fe\u5728\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u4e2d\u3060\u3051\u3067public<br \/>\n\u7279\u5b9a\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u5bfe\u3057\u3066\u306e\u307fpublic<br \/>\n\u5168\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u5bfe\u3057\u3066public (\u5f93\u6765\u3068\u540c\u3058public)<\/p>\n<h1>\u6a21\u5757\u57fa\u672c<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\/sec\u76f4\u4e0b\u306emodule-info.java\u3067\u30e2\u30b8\u30e5\u30fc\u30eb\u5b9a\u7fa9\u30d5\u30a1\u30a4\u30eb\u8a18\u8ff0<\/ul>\n<\/li>\n<\/ul>\n<p>\u30e2\u30b8\u30e5\u30fc\u30eb\u304c\u4f9d\u5b58\u3059\u308b\u30d1\u30c3\u30b1\u30fc\u30b8\u3001\u5916\u306b\u516c\u958b\u3059\u308b\u30d1\u30c3\u30b1\u30fc\u30b8\u60c5\u5831\u3092\u5217\u6319<br \/>\n\u5fc5\u8981\u30e9\u30a4\u30d6\u30e9\u30ea\u3092requires\u3067\u5ba3\u8a00\u3057\u3066\u306a\u3044\u3068The type java.net.http.HttpRequest is not accessible<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/\u30e2\u30b8\u30e5\u30fc\u30eb\u540dfoo<\/span>\r\n<span class=\"c1\">\/\/foo\u30e2\u30b8\u30e5\u30fc\u30eb\u3067\u306fjava.net.http\u3092\u5fc5\u8981<\/span>\r\n<span class=\"n\">module<\/span> <span class=\"n\">foo<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">requires<\/span> <span class=\"n\">java<\/span><span class=\"o\">.<\/span><span class=\"na\">net<\/span><span class=\"o\">.<\/span><span class=\"na\">http<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">requires<\/span> <span class=\"n\">mylib<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">requires<\/span> <span class=\"n\">gson<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u6807\u51c6\u5e93\u7684\u6a21\u5757<\/p>\n<ul class=\"post-ul\">\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3082\u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u3055\u308c\u3066\u3044\u308b<\/ul>\n<h2>\u57fa\u672c\u6a21\u5757<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">java.base<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4e00\u500b\u4e00\u500brequires\u8ffd\u52a0\u3059\u308b\u306e\u306f\u9762\u5012\u306a\u306e\u3067\u3001\u3088\u304f\u5229\u7528\u3059\u308b\u30d1\u30c3\u30b1\u30fc\u30b8\u3092java.base\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u307e\u3068\u3081\u3089\u308c\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>java.base\u30e2\u30b8\u30e5\u30fc\u30eb\u306f\u6697\u9ed9\u7684\u306b\u30ed\u30fc\u30c9\u3055\u308c\u308b\u306e\u3067\u660e\u793a\u7684\u306brequires\u5ba3\u8a00\u4e0d\u8981<br \/>\nJava\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u5168\u4f53\u3092\u5b9a\u7fa9\u3057\u305fjava.se\u30e2\u30b8\u30e5\u30fc\u30eb\u3082\u3042\u308b\u304c\u4e0d\u8981\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u3082\u30ed\u30fc\u30c9\u3057\u3066\u3057\u307e\u3046<\/p>\n<h1>\u53d8\u52a8\u7684\u4f9d\u8d56\u63a8\u79fb\u7684\uff1a\u30ed\u30fc\u30c9\u3057\u305f\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u5148\u3067\u3055\u3089\u306b\u4ed6\u306e\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u4f9d\u5b58\u3057\u3066\u3044\u305f\u5834\u5408\u3092\u4f9d\u5b58\u5148\u3082\u30ed\u30fc\u30c9<\/p>\n<p>requires transitive\u3067\u63a8\u79fb\u7684\u306a\u4f9d\u5b58\u3092\u3044\u3044\u611f\u3058\u306b\u89e3\u6c7a<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">module<\/span> <span class=\"n\">java<\/span><span class=\"o\">.<\/span><span class=\"na\">se<\/span> <span class=\"o\">{<\/span> \r\n  <span class=\"n\">requires<\/span> <span class=\"n\">transitive<\/span> <span class=\"n\">java<\/span><span class=\"o\">.<\/span><span class=\"na\">compiler<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">requires<\/span> <span class=\"n\">transitive<\/span> <span class=\"n\">java<\/span><span class=\"o\">.<\/span><span class=\"na\">datatranfer<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">requires<\/span> <span class=\"n\">transitive<\/span> <span class=\"n\">java<\/span><span class=\"o\">.<\/span><span class=\"na\">desktop<\/span><span class=\"o\">;<\/span>\r\n<span class=\"c1\">\/\/\u7565<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u53d1\u5e03\u5305<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u81ea\u5206\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u516c\u958b\u3057\u305f\u3044\u5834\u5408<\/ul>\n<\/li>\n<\/ul>\n<p>\u5916\u90e8\u306b\u516c\u958b\u3057\u305f\u3044\u30d1\u30c3\u30b1\u30fc\u30b8\uff08lib\uff09\u3001\u30e9\u30a4\u30d6\u30e9\u30ea\u5185\u3067\u5229\u7528\u3059\u308b\u30d1\u30c3\u30b1\u30fc\u30b8\u304c\u3042\u308b\uff08internal\uff09<\/p>\n<p>exports\u30c7\u30a3\u30ec\u30c3\u30af\u30c6\u30a3\u30d6\u3067\u516c\u958b\u3057\u305f\u30e9\u30a4\u30d6\u30e9\u30ea\u306e\u307f\u3092\u5916\u90e8\u516c\u958b\u3067\u304d\u308b<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">module<\/span> <span class=\"n\">mylib<\/span> <span class=\"o\">{<\/span> \r\n  <span class=\"n\">exports<\/span> <span class=\"n\">mylib<\/span><span class=\"o\">.<\/span><span class=\"na\">lib<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/OK<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">mylib.lib.MainLib<\/span><span class=\"o\">;<\/span>\r\n<span class=\"c1\">\/\/NG! interna;\u30d1\u30c3\u30b1\u30fc\u30b8\u306f\u4e0d\u53ef\u8996<\/span>\r\n<span class=\"c1\">\/\/import mylib.internal.Sublib;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">ModuleClient<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"kt\">var<\/span> <span class=\"n\">main<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">MainLib<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"n\">main<\/span><span class=\"o\">.<\/span><span class=\"na\">run<\/span><span class=\"o\">();<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"n\">module<\/span> <span class=\"n\">foo<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">requires<\/span> <span class=\"n\">java<\/span><span class=\"o\">.<\/span><span class=\"na\">net<\/span><span class=\"o\">.<\/span><span class=\"na\">http<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">requires<\/span> <span class=\"n\">mylib<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">requires<\/span> <span class=\"n\">gson<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u53ea\u5bf9\u7279\u5b9a\u7684\u6a21\u5757\u8fdb\u884c\u5305\u53d1\u5e03<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">exports \u30d1\u30c3\u30b1\u30fc\u30b8 to \u30e2\u30b8\u30e5\u30fc\u30eb<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u4ee5\u4e0b\u306e\u5834\u5408\u3001lib\u30d1\u30c3\u30b1\u30fc\u30b8\u306ffoo\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u306e\u307f\u516c\u958b\u3055\u308c\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u516c\u958b\u5148\u306f,\u3067\u8907\u6570\u6307\u5b9a\u53ef\u80fd<\/ul>\n<pre class=\"post-pre\"><code><span class=\"n\">module<\/span> <span class=\"n\">mylib<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">exports<\/span> <span class=\"n\">mylib<\/span><span class=\"o\">.<\/span><span class=\"na\">lib<\/span> <span class=\"n\">to<\/span> <span class=\"n\">foo<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u5c06private\u65b9\u6cd5\u6539\u4e3apublic<br \/>\n\u30c7\u30a3\u30fc\u30d7\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\uff1a\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u3092\u5229\u7528\u3057\u5f37\u5236\u7684\u306b\u30a2\u30af\u30bb\u30b9<\/p>\n<p>\u30e2\u30b8\u30e5\u30fc\u30ebexports\u306e\u307f\u3067\u306f\u30c7\u30a3\u30fc\u30d7\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u306f\u4e0d\u53ef\u80fd<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">java.lang.reflect.InvocationTargetException<\/span><span class=\"o\">;<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">mylib.lib.MainLib<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">ModuleClient2<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">try<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"kt\">var<\/span> <span class=\"n\">clazz<\/span> <span class=\"o\">=<\/span> <span class=\"nc\">MainLib<\/span><span class=\"o\">.<\/span><span class=\"na\">class<\/span><span class=\"o\">;<\/span>\r\n      <span class=\"kt\">var<\/span> <span class=\"n\">con<\/span> <span class=\"o\">=<\/span> <span class=\"n\">clazz<\/span><span class=\"o\">.<\/span><span class=\"na\">getConstructor<\/span><span class=\"o\">();<\/span>\r\n      <span class=\"kt\">var<\/span> <span class=\"n\">m<\/span> <span class=\"o\">=<\/span> <span class=\"n\">con<\/span><span class=\"o\">.<\/span><span class=\"na\">newInstance<\/span><span class=\"o\">();<\/span>\r\n      <span class=\"kt\">var<\/span> <span class=\"n\">name<\/span> <span class=\"o\">=<\/span> <span class=\"n\">clazz<\/span><span class=\"o\">.<\/span><span class=\"na\">getDeclaredField<\/span><span class=\"o\">(<\/span><span class=\"s\">\"name\"<\/span><span class=\"o\">);<\/span> \r\n      <span class=\"n\">name<\/span><span class=\"o\">.<\/span><span class=\"na\">setAccessible<\/span><span class=\"o\">(<\/span><span class=\"kc\">true<\/span><span class=\"o\">);<\/span> <span class=\"c1\">\/\/\u30a8\u30e9\u30fc<\/span>\r\n      <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">name<\/span><span class=\"o\">.<\/span><span class=\"na\">get<\/span><span class=\"o\">(<\/span><span class=\"n\">m<\/span><span class=\"o\">));<\/span>\r\n\r\n    <span class=\"o\">}<\/span> <span class=\"k\">catch<\/span> <span class=\"o\">(<\/span><span class=\"nc\">InstantiationException<\/span> <span class=\"o\">|<\/span> <span class=\"nc\">IllegalAccessException<\/span> <span class=\"o\">|<\/span>\r\n        <span class=\"nc\">IllegalArgumentException<\/span> <span class=\"o\">|<\/span> <span class=\"nc\">InvocationTargetException<\/span>\r\n        <span class=\"o\">|<\/span> <span class=\"nc\">NoSuchMethodException<\/span> <span class=\"o\">|<\/span> <span class=\"nc\">SecurityException<\/span> <span class=\"o\">|<\/span> <span class=\"nc\">NoSuchFieldException<\/span> <span class=\"n\">e<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n      <span class=\"n\">e<\/span><span class=\"o\">.<\/span><span class=\"na\">printStackTrace<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"o\">}<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h3>\u901a\u8fc7\u4f7f\u7528opens\u6307\u4ee4\u8fdb\u884c\u5305\u58f0\u660e\u6765\u89e3\u51b3\uff01<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u3042\u304f\u307e\u3067\u3082\u5b9f\u884c\u6642\u306e\u307f\u30d1\u30c3\u30b1\u30fc\u30b8\u516c\u958b\u3059\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u4ee5\u5916\u3067\u578b\u3092\u53c2\u7167\u3059\u308b\u5834\u5408\u306fexports\u30c7\u30a3\u30ec\u30af\u30c6\u30a3\u30d6\u3082\u4f75\u8a18<\/ul>\n<\/li>\n<\/ul>\n<p>open module mylib {\u306b\u3059\u308b\u3068\u30e2\u30b8\u30e5\u30fc\u30eb\u914d\u4e0b\u306e\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u5168\u90e8open\u6271\u3044\u306b\u3059\u308b<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">module<\/span> <span class=\"n\">mylib<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"n\">opens<\/span> <span class=\"n\">mylib<\/span><span class=\"o\">.<\/span><span class=\"na\">lib<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"n\">exports<\/span> <span class=\"n\">mylib<\/span><span class=\"o\">.<\/span><span class=\"na\">lib<\/span><span class=\"o\">;<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h1>\u7279\u6b8a\u6a21\u5757<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u64ec\u4f3c\u7684\u306a\u30e2\u30b8\u30e5\u30fc\u30eb\u6982\u5ff5\u3082\u63d0\u4f9b\u3055\u308c\u3066\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>\u81ea\u52d5\u30e2\u30b8\u30e5\u30fc\u30eb<br \/>\n\u7121\u540d\u30e2\u30b8\u30e5\u30fc\u30eb<\/p>\n<h2>\u81ea\u52a8\u6a21\u5757<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e2\u30b8\u30e5\u30fc\u30eb\u30d1\u30b9\u306b\u914d\u7f6e\u3055\u308c\u305f.jar\u30d5\u30a1\u30a4\u30eb<\/ul>\n<\/li>\n<\/ul>\n<p>module-info.java\u3092\u6301\u305f\u306a\u3044\u30e9\u30a4\u30d6\u30e9\u30ea<\/p>\n<h3>\u4ece\u5ba3\u8a00\u4fe1\u606f\u505a\u51fa\u51b3\u5b9a<\/p>\n<ul class=\"post-ul\">\u30de\u30cb\u30d5\u30a7\u30b9\u30c8\u30d5\u30a1\u30a4\u30eb(META-INF\/MANIFEST.MF)\u306eAutomatic-Module-Name\u5c5e\u6027\u3067\u6307\u5b9a\u3055\u308c\u305f\u540d\u524d\u3092\u30e2\u30b8\u30e5\u30fc\u30eb\u540d\u306b\u3059\u308b<\/ul>\n<pre class=\"post-pre\"><code><span class=\"nc\">Manifest<\/span><span class=\"o\">-<\/span><span class=\"nl\">Version:<\/span> <span class=\"mf\">1.0<\/span>\r\n<span class=\"nc\">Automatic<\/span><span class=\"o\">-<\/span><span class=\"nc\">Module<\/span><span class=\"o\">-<\/span><span class=\"nl\">Name:<\/span> <span class=\"n\">hoge<\/span><span class=\"o\">.<\/span><span class=\"na\">bar<\/span>\r\n<\/code><\/pre>\n<h3>\u901a\u8fc7.jar\u6587\u4ef6\u540d\u6765\u786e\u5b9a<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u547d\u540d\u898f\u5247<\/ul>\n<\/li>\n<\/ul>\n<p>\u62e1\u5f35\u5b50.jar\u306f\u524a\u9664<br \/>\n\u30cf\u30a4\u30d5\u30f3\u4ee5\u964d\u306e\u6587\u5b57\u304c\u6570\u5024\/\u30c9\u30c3\u30c8\u306e\u307f\u306e\u5834\u5408\u3001\u30cf\u30a4\u30d5\u30f3\u4ee5\u964d\u524a\u9664<br \/>\n\u82f1\u6570\u5b57\u4ee5\u5916\u306f.\u306b\u5909\u63db<br \/>\n\u7e70\u308a\u8fd4\u3057\u30c9\u30c3\u30c8\u306f\u5358\u4e00\u30c9\u30c3\u30c8\u306b\u3001\u5148\u982d\/\u672b\u5c3e\u306e\u30c9\u30c3\u30c8\u306f\u9664\u53bb<\/p>\n<p>ex: hoge-bar-1.0.5.jar\u306fhoge.bar<\/p>\n<p>\u52d5\u4f5c\u30eb\u30fc\u30eb<\/p>\n<p>\u914d\u4e0b\u306e\u5168\u30d1\u30c3\u30b1\u30fc\u30b8\u3092exports\/opens<br \/>\n\u30e2\u30b8\u30e5\u30fc\u30eb\u30d1\u30b9\u306b\u767b\u9332\u3055\u308c\u305f\u5168\u30e2\u30b8\u30e5\u30fc\u30eb\u3001\u7121\u540d\u30e2\u30b8\u30e5\u30fc\u30eb\u3092requires<br \/>\n\u81ea\u52d5\u30e2\u30b8\u30e5\u30fc\u30eb\u3067exports\/opens\u3055\u308c\u305f\u30d1\u30c3\u30b1\u30fc\u30b8\u3092\u4ed6\u30e2\u30b8\u30e5\u30fc\u30eb\u304b\u3089\u5229\u7528\u3059\u308b\u306b\u306frequires\u5fc5\u8981<\/p>\n<h2>\u533f\u540d\u6a21\u5757<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30af\u30e9\u30b9\u30d1\u30b9\u306b\u914d\u7f6e\u3055\u308c\u305f.jar\u30d5\u30a1\u30a4\u30eb<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30e2\u30b8\u30e5\u30fc\u30eb\u540d\u6301\u305f\u306a\u3044<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u30b3\u30f3\u30d1\u30a4\u30eb\u6642\u306b\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30e2\u30b8\u30e5\u30fc\u30eb\u304b\u3089\u306e\u53c2\u7167\u306f\u4e0d\u53ef\u80fd<\/ul>\n<\/li>\n<\/ul>\n<p>\u81ea\u52d5\u30e2\u30b8\u30e5\u30fc\u30eb\u304b\u3089\u306e\u53c2\u7167\u306f\u53ef\u80fd<\/p>\n<p>\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30e2\u30b8\u30e5\u30fc\u30eb\uff1amodule-info.java\u3092\u3082\u308b\u30e2\u30b8\u30e5\u30fc\u30eb<\/p>\n<p>\u30d7\u30e9\u30c3\u30c8\u30d5\u30a9\u30fc\u30e0\u30e2\u30b8\u30e5\u30fc\u30eb\uff1a\u6a19\u6e96\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u69cb\u6210\u3059\u308b\u30e2\u30b8\u30e5\u30fc\u30eb<\/p>\n<h1>\u4e0e\u975e\u6a21\u5757\u5316\u5e93\u5171\u5b58\u30e2\u30b8\u30e5\u30fc\u30eb\u5316\u3055\u308c\u305f\u30a2\u30d7\u30ea\u304b\u3089\u975e\u30e2\u30b8\u30e5\u30fc\u30eb\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u5229\u7528\u3059\u308b<br \/>\n\u4ee5\u4e0b\u306eGson\u30e9\u30a4\u30d6\u30e9\u30ea\u306fJava\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092JSON\u5f62\u5f0f\u306e\u6587\u5b57\u5217\u306b\u5909\u63db\u3059\u308b<\/p>\n<p>java.sql\u30d1\u30c3\u30b1\u30fc\u30b8\u4f9d\u5b58<br \/>\n\u5909\u63db\u5bfe\u8c61\u306eJava\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u30c7\u30a3\u30fc\u30d7\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3<\/p>\n<p>Gson\u304c\u5185\u90e8\u7684\u306b\u5229\u7528\u3059\u308bjava.sql\u30e2\u30b8\u30e5\u30fc\u30eb\u3078\u306e\u53c2\u7167\u304c\u306a\u3044\u3068java.sql.Time\u30af\u30e9\u30b9\u306b\u3082\u30a2\u30af\u30bb\u30b9\u3067\u304d\u306a\u3044<\/p>\n<pre class=\"post-pre\"><code><span class=\"c1\">\/\/NG\u4f8b\u3000\u5b9f\u884c\u6642\u30a8\u30e9\u30fc<\/span>\r\n<span class=\"kn\">import<\/span> <span class=\"nn\">com.google.gson.Gson<\/span><span class=\"o\">;<\/span>\r\n\r\n<span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">NoModuleLib<\/span> <span class=\"o\">{<\/span>\r\n\r\n  <span class=\"kd\">public<\/span> <span class=\"kd\">static<\/span> <span class=\"kt\">void<\/span> <span class=\"nf\">main<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span><span class=\"o\">[]<\/span> <span class=\"n\">args<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"kt\">var<\/span> <span class=\"n\">g<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Gson<\/span><span class=\"o\">();<\/span>\r\n    <span class=\"kt\">var<\/span> <span class=\"n\">a<\/span> <span class=\"o\">=<\/span> <span class=\"k\">new<\/span> <span class=\"nc\">Article<\/span><span class=\"o\">(<\/span><span class=\"s\">\"Java 11\u306e\u5909\u66f4\u70b9\"<\/span><span class=\"o\">,<\/span> <span class=\"s\">\"https:\/\/codezine.jp\/article\/corner\/751\"<\/span><span class=\"o\">);<\/span>\r\n\r\n    <span class=\"c1\">\/\/\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5185\u5bb9\u3092JSON\u5316\u3057\u305f\u7d50\u679c\u3092\u51fa\u529b<\/span>\r\n    <span class=\"nc\">System<\/span><span class=\"o\">.<\/span><span class=\"na\">out<\/span><span class=\"o\">.<\/span><span class=\"na\">println<\/span><span class=\"o\">(<\/span><span class=\"n\">g<\/span><span class=\"o\">.<\/span><span class=\"na\">toJson<\/span><span class=\"o\">(<\/span><span class=\"n\">a<\/span><span class=\"o\">));<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kd\">public<\/span> <span class=\"kd\">class<\/span> <span class=\"nc\">Article<\/span> <span class=\"o\">{<\/span>\r\n  <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">title<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"kd\">private<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">url<\/span><span class=\"o\">;<\/span>\r\n\r\n  <span class=\"kd\">public<\/span> <span class=\"nf\">Article<\/span><span class=\"o\">(<\/span><span class=\"nc\">String<\/span> <span class=\"n\">title<\/span><span class=\"o\">,<\/span> <span class=\"nc\">String<\/span> <span class=\"n\">url<\/span><span class=\"o\">)<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">title<\/span> <span class=\"o\">=<\/span> <span class=\"n\">title<\/span><span class=\"o\">;<\/span>\r\n    <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">url<\/span> <span class=\"o\">=<\/span> <span class=\"n\">url<\/span><span class=\"o\">;<\/span>\r\n  <span class=\"o\">}<\/span>\r\n\r\n  <span class=\"nd\">@Override<\/span>\r\n  <span class=\"kd\">public<\/span> <span class=\"nc\">String<\/span> <span class=\"nf\">toString<\/span><span class=\"o\">()<\/span> <span class=\"o\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"nc\">String<\/span><span class=\"o\">.<\/span><span class=\"na\">format<\/span><span class=\"o\">(<\/span><span class=\"s\">\"\u30bf\u30a4\u30c8\u30eb\uff1a%s\uff08%s\uff09\"<\/span><span class=\"o\">,<\/span>\r\n        <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">title<\/span><span class=\"o\">,<\/span> <span class=\"k\">this<\/span><span class=\"o\">.<\/span><span class=\"na\">url<\/span><span class=\"o\">);<\/span>\r\n  <span class=\"o\">}<\/span>\r\n<span class=\"o\">}<\/span>\r\n<\/code><\/pre>\n<h2>\u5728\u6267\u884c\u9009\u9879\u4e2d\u660e\u786e\u6dfb\u52a0\u6a21\u5757<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u5b9f\u884c\u69cb\u6210\u306eVM\u5f15\u6570\u3067<\/ul>\n<\/li>\n<\/ul>\n<p>&#8211;add-opens=\u30e2\u30b8\u30e5\u30fc\u30eb\u540d\/\u30d1\u30c3\u30b1\u30fc\u30b8\u540d=\u30a2\u30af\u30bb\u30b9\u8a31\u53ef\u3059\u308b\u30e2\u30b8\u30e5\u30fc\u30eb<\/p>\n<p>&#8211;add-modules=java.sql &#8211;add-opens=foo\/example=gson<\/p>\n<p>foo\u30e2\u30b8\u30e5\u30fc\u30eb\u306eexample\u30d1\u30c3\u30b1\u30fc\u30b8\u3092gson\u30e9\u30a4\u30d6\u30e9\u30ea\u304b\u3089\u30a2\u30af\u30bb\u30b9\u53ef\u80fd\u306b\u3059\u308b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6a21\u5757\u662f\u4ec0\u4e48\uff1f \u30d1\u30c3\u30b1\u30fc\u30b8\u306e\u4e0a\u4f4d\u6982\u5ff5 &nbsp; \u69cb\u6210 \u30d1\u30c3\u30b1\u30fc\u30b8\u7fa4\u3068\u95a2\u9023\u3059\u308b\u30ea\u30bd\u30fc\u30b9 \u81ea\u8eab\u306e\u69cb\u6210\u60c5\u5831\u3092\u898f\u5b9a\u3059 [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[227],"class_list":["post-31077","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-227"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO 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