{"id":44587,"date":"2023-12-04T03:01:40","date_gmt":"2023-03-11T16:19:28","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8protocol-buffers%e5%92%8cgo%e8%af%ad%e8%a8%80%e7%9a%84time%e5%8c%85%e4%b9%8b%e9%97%b4%e8%bf%9b%e8%a1%8ctimestamp%e3%80%81duration%e5%92%8c%e6%97%b6%e9%97%b4%e7%b1%bb%e5%9e%8b%e7%9a%84\/"},"modified":"2024-05-04T12:04:07","modified_gmt":"2024-05-04T04:04:07","slug":"%e5%9c%a8protocol-buffers%e5%92%8cgo%e8%af%ad%e8%a8%80%e7%9a%84time%e5%8c%85%e4%b9%8b%e9%97%b4%e8%bf%9b%e8%a1%8ctimestamp%e3%80%81duration%e5%92%8c%e6%97%b6%e9%97%b4%e7%b1%bb%e5%9e%8b%e7%9a%84","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8protocol-buffers%e5%92%8cgo%e8%af%ad%e8%a8%80%e7%9a%84time%e5%8c%85%e4%b9%8b%e9%97%b4%e8%bf%9b%e8%a1%8ctimestamp%e3%80%81duration%e5%92%8c%e6%97%b6%e9%97%b4%e7%b1%bb%e5%9e%8b%e7%9a%84\/","title":{"rendered":"\u5728Protocol Buffers\u548cGo\u8bed\u8a00\u7684time\u5305\u4e4b\u95f4\u8fdb\u884cTimestamp\u3001Duration\u548c\u65f6\u95f4\u7c7b\u578b\u7684\u4e92\u76f8\u8f6c\u6362"},"content":{"rendered":"<h2>\u5e9f\u5f03+\u7684<\/h2>\n<p>\u6839\u636e&#8221;https:\/\/pkg.go.dev\/github.com\/golang\/protobuf\/ptypes&#8221;\u4e0a\u7684\u8bf4\u660e\uff0c\u73b0\u5728&#8221;google.golang.org\/protobuf&#8221;\u5df2\u7ecf\u6709\u76f8\u5e94\u7684\u51fd\u6570\u652f\u6301\uff0c\u6240\u4ee5\u5e94\u8be5\u5c06\u672c\u6587\u4e2d\u7684\u4ee3\u7801\u8fc1\u79fb\u5230\u65b0\u7684\u51fd\u6570\u4e0a\u3002<\/p>\n<hr \/>\n<p>(\u4ee5\u4e0b\u3001\u539f\u6587)<\/p>\n<p>\u8bf7\u7528\u4e2d\u6587\u81ea\u7136\u5730\u91cd\u65b0\u8868\u8fbe\u4ee5\u4e0b\u5185\u5bb9\uff0c\u53ea\u9700\u4e00\u4e2a\u9009\u9879\uff1a<br \/>\n(\u4ee5\u4e0b\u3001\u5143\u306e\u8a18\u4e8b)<\/p>\n<p>\u8c37\u6b4c\u6700\u521d\u5f00\u53d1\u7684\u4e00\u79cd\u6570\u636e\u5e8f\u5217\u5316\u683c\u5f0f\uff0c\u53eb\u505a\u534f\u8bae\u7f13\u51b2\uff08Protocol Buffers\uff09\uff0c\u5728\u8fd9\u7bc7\u6587\u7ae0\u4e2d\u91cd\u65b0\u4ecb\u7ecd\u4e86\u534f\u8bae\u7f13\u51b2\u7684\u63a5\u53e3\u63cf\u8ff0\u8bed\u8a00\uff08IDL\uff09\u3002<\/p>\n<p>Protobuf \u4e2d\u9884\u5148\u51c6\u5907\u4e86\u4e00\u4e2a\u88ab\u79f0\u4e3a &#8220;well-known types&#8221; \u7684\u5e38\u7528\u7c7b\u578b\uff0c\u5176\u4e2d\u5305\u62ec\u65e5\u671f\u548c\u65f6\u95f4\u4ee5\u53ca\u65f6\u95f4\u6bb5\u3002<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">google.protobuf.Timestamp<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">google.protobuf.Duration<\/ul>\n<p>google.protobuf.Timestamp\u8868\u793a\u7684\u662f\u4e0d\u5e26\u65f6\u533a\u7684\u65f6\u95f4\u3002\u5b83\u53ef\u4ee5\u8bb0\u5f55\u65e5\u671f\u3001\u65f6\u95f4\u548c\u7eb3\u79d2\u3002\u65f6\u95f4\u533a\u88ab\u8ba4\u4e3a\u662fUTC\u3002<br \/>\ngoogle.protobuf.Duration\u8868\u793a\u7684\u662f\u4e00\u6bb5\u65f6\u95f4\u3002\u5b83\u53ef\u4ee5\u8868\u793a\u79d2\u3001\u5c0f\u65f6\u7b49\u6982\u5ff5\uff0c\u5e76\u4e14\u53ef\u4ee5\u8bb0\u5f55\u7eb3\u79d2\u3002<\/p>\n<p>\u5728Go\u8bed\u8a00\u4e2d\uff0c\u5bf9\u5e94\u8fd9\u4e9b\u6982\u5ff5\u7684\u53ef\u4ee5\u8bf4\u662f\u6807\u51c6\u5305time\u4e2d\u7684time.Time\u548ctime.Duration\u3002<\/p>\n<p>\u5f53\u7136\uff0c\u7531\u4e8e\u4e92\u76f8\u8f6c\u6362\u7684\u9700\u6c42\uff0c\u63d0\u4f9b\u4e86\u65b9\u4fbf\u7684\u8f6f\u4ef6\u5305\u3002<\/p>\n<h2>\u6642\u523b\u578b\u7684\u4e92\u8f49<\/h2>\n<h3>tspb.Timestamp \u2192 time.Time \u65f6\u95f4<\/h3>\n<p>\u4f7f\u7528 github.com\/golang\/protobuf\/ptypes#Timestamp\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">Timestamp<\/span><span class=\"p\">(<\/span><span class=\"n\">ts<\/span> <span class=\"o\">*<\/span><span class=\"n\">tspb<\/span><span class=\"o\">.<\/span><span class=\"n\">Timestamp<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Time<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h3>\u65f6\u95f4.\u65f6\u95f4 \u2192 *tspb.\u65f6\u95f4\u6233<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528 `github.com\/golang\/protobuf\/ptypes#TimestampProto`\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">TimestampProto<\/span><span class=\"p\">(<\/span><span class=\"n\">t<\/span> <span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Time<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">tspb<\/span><span class=\"o\">.<\/span><span class=\"n\">Timestamp<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u987a\u4fbf\u63d0\u4e00\u53e5\uff0c\u8fd8\u6709\u4e00\u4e9b\u65b9\u4fbf\u7684\u51fd\u6570\uff0c\u5982 func TimestampNow() *tspb.Timestamp\uff0c\u53ef\u4f9b\u4f7f\u7528\u3002\u65e0\u9700\u8d39\u5fc3\u53bb\u5199 ts, _ := TimestampProto(time.Now()) \u8fd9\u6837\u7684\u4ee3\u7801\uff0c\u5c31\u80fd\u5feb\u901f\u521b\u5efa\u5f53\u524d\u65f6\u95f4\u3002<\/p>\n<h3>\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\u4f1a\u53d1\u751f\u9519\u8bef\uff1f<\/h3>\n<p>\u4e24\u8005\u90fd\u662f\u8fd4\u56de\u9519\u8bef\u7684\u63a5\u53e3\u3002\u8fd9\u4f3c\u4e4e\u662f\u7531\u4e8etime.Time\u548ctspb.Timestamp\u4e4b\u95f4\u5fae\u5999\u7684\u4e0d\u517c\u5bb9\u6027\u5f15\u8d77\u7684\u3002\u4f8b\u5982\uff0c\u5373\u4f7f\u5728Go\u7684time.Date\u4e2d\u8f93\u5165\u975e\u5e38\u5927\u7684\u6570\u5b57\u6216\u8d1f\u6570\u5230\u5e74\u4efd\uff0c\u5b83\u4e5f\u80fd\u6b63\u5e38\u8fd0\u884c\u3002\u8fd9\u610f\u5473\u7740\u5b83\u53ef\u4ee5\u5904\u7406\u7c7b\u4f3c\u4e8e10\u4ebf\u5e74\u672a\u6765\u65e5\u671f\u6216\u516c\u5143\u524d\u7684\u8fc7\u53bb\u65e5\u671f\u7684\u65e5\u671f\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">Date<\/span><span class=\"p\">(<\/span><span class=\"n\">year<\/span> <span class=\"kt\">int<\/span><span class=\"p\">,<\/span> <span class=\"n\">month<\/span> <span class=\"n\">Month<\/span><span class=\"p\">,<\/span> <span class=\"n\">day<\/span><span class=\"p\">,<\/span> <span class=\"n\">hour<\/span><span class=\"p\">,<\/span> <span class=\"n\">min<\/span><span class=\"p\">,<\/span> <span class=\"n\">sec<\/span><span class=\"p\">,<\/span> <span class=\"n\">nsec<\/span> <span class=\"kt\">int<\/span><span class=\"p\">,<\/span> <span class=\"n\">loc<\/span> <span class=\"o\">*<\/span><span class=\"n\">Location<\/span><span class=\"p\">)<\/span> <span class=\"n\">Time<\/span>\r\n<\/code><\/pre>\n<p>\u5728\u8fd9\u4efd\u94fe\u63a5\u7684protobuf\u7684Timestamp\u7c7b\u578b\u4e2d\uff0c\u660e\u786e\u5199\u660e\u53ef\u4ee5\u8868\u793a\u4ece0001-01-01T00:00:00Z\u52309999-12-31T23:59:59.999999999Z\u7684\u8303\u56f4\u3002<\/p>\n<p>protobuf\u7684\u76ee\u7684\u662f\u5728\u7cfb\u7edf\u4e4b\u95f4\u4fdd\u6301\u4e92\u64cd\u4f5c\u6027\u5e76\u4ea4\u6362\u4fe1\u606f\uff0c\u56e0\u6b64\u5b83\u8bbe\u7f6e\u4e86\u53ef\u4ee5\u5728\u5404\u79cd\u7cfb\u7edf\u4e2d\u6b63\u786e\u5904\u7406\u7684\u8303\u56f4\u3002\u4f8b\u5982\uff0cMySQL\u7684DateTime\u7c7b\u578b\u7684\u4e0a\u9650\u662f9999-12-31 23:59:59\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u5982\u679c\u5728Go\u8bed\u8a00\u4e2d\u521b\u5efa\u8d85\u51fa\u672a\u6765\u6216\u8d85\u8fc7\u53bb\u7684time.Time\uff0c\u5e76\u5c1d\u8bd5\u5c06\u5176\u8f6c\u6362\u4e3a*tspb.Timestamp\uff0c\u4f1a\u51fa\u73b0\u9519\u8bef\u3002\u5982\u679c\u76f4\u63a5\u4f20\u9012\u8d85\u51fa\u8303\u56f4\u7684*tspb.Timestamp\u7ed9Timestamp()\uff0c\u4e5f\u4f1a\u4ea7\u751f\u9519\u8bef\u3002<\/p>\n<p>\u9664\u4e86\u5176\u4ed6\u4e00\u4e9b\u9a8c\u8bc1\u4ee5\u5916\uff0c\u8bf7\u67e5\u770bptypes\u6e90\u4ee3\u7801\u4ee5\u83b7\u53d6\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<p>https:\/\/github.com\/golang\/protobuf\/blob\/6c65a5562fc06764971b7c5d05c76c75e84bdbf7\/ptypes\/timestamp.go#L63-L77<\/p>\n<p>\u5c3d\u7ba1\u5982\u6b64\uff0c\u7531\u4e8e\u8fd9\u79cd\u60c5\u51b5\u901a\u5e38\u4e0d\u4f1a\u5728\u6b63\u5e38\u7cfb\u7edf\u4e2d\u53d1\u751f\uff0c\u4e5f\u8bb8\u4e0d\u9700\u8981\u7279\u522b\u4ed4\u7ec6\u5730\u5904\u7406\u9519\u8bef\u4e5f\u662f\u53ef\u4ee5\u7684\u3002<\/p>\n<h2>\u76f8\u4e92\u8f6c\u6362\u7684\u671f\u95f4\u7c7b\u578b<\/h2>\n<h3>durpb.Duration \u2192 time.Duration<\/h3>\n<p>durpb.Duration \u2192 \u65f6\u957f\u3002<\/p>\n<p>github.com\/golang\/protobuf\/ptypes#Duration \u7684\u4e2d\u6587\u91ca\u4e49\u5982\u4e0b\uff1a<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">Duration<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"o\">*<\/span><span class=\"n\">durpb<\/span><span class=\"o\">.<\/span><span class=\"n\">Duration<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Duration<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h3>\u65f6\u95f4\u95f4\u9694 \u2192 *durpb.Duration<\/h3>\n<p>github.com\/golang\/protobuf\/ptypes#DurationProto\u7684\u4e2d\u6587\u610f\u601d\u662f\u4ec0\u4e48\uff1f<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">func<\/span> <span class=\"n\">DurationProto<\/span><span class=\"p\">(<\/span><span class=\"n\">d<\/span> <span class=\"n\">time<\/span><span class=\"o\">.<\/span><span class=\"n\">Duration<\/span><span class=\"p\">)<\/span> <span class=\"o\">*<\/span><span class=\"n\">durpb<\/span><span class=\"o\">.<\/span><span class=\"n\">Duration<\/span>\r\n<\/code><\/pre>\n<h3>\u5728\u4ec0\u4e48\u60c5\u51b5\u4e0b\u4f1a\u53d1\u751f\u9519\u8bef\uff1f<\/h3>\n<p>\u54e6\u3002\u4e0e timestamp \u4e0d\u540c\u7684\u662f\uff0c\u4ece time.Duration \u8f6c\u6362\u65f6\u4e0d\u4f1a\u8fd4\u56de\u9519\u8bef\u3002<\/p>\n<p>\u5594\u3002\u4e0e timestamp \u4e0d\u540c\u7684\u662f\uff0c\u5c06\u65f6\u95f4\u6bb5\u4ece time.Duration \u8f6c\u6362\u65f6\u4e0d\u4f1a\u6536\u5230\u9519\u8bef\u56de\u5e94\u3002<\/p>\n<p>\u5bf9\u4e8e protobuf\uff0c\u53ef\u4ee5\u5904\u7406\u7684\u8303\u56f4\u88ab\u5199\u6210\u5927\u7ea6\u52a0\u51cf\u4e00\u4e07\u5e74\u3002\u4e4b\u6240\u4ee5\u79f0\u5176\u4e3a &#8220;\u5927\u7ea6&#8221; \u662f\u56e0\u4e3a\u5b83\u53ea\u7c97\u7565\u5730\u8003\u8651\u4e86\u95f0\u5e74\u7b49\u60c5\u51b5\u3002<\/p>\n<blockquote><p>\u8303\u56f4\u5927\u7ea6\u662f\u6b63\u8d1f10,000\u5e74\u3002<\/p><\/blockquote>\n<p>\u6211\u8ba4\u4e3a\u65f6\u95f4\u6233\u53ef\u4ee5\u6301\u7eed\u5230\u4e00\u4e07\u5e74\uff0c\u6240\u4ee5\u6211\u4eec\u4f7fDuration\u80fd\u591f\u5904\u7406\u76f8\u5e94\u7684\u65f6\u95f4\u3002<\/p>\n<p>\u4e00\u65b9\u9762\uff0cGo\u8bed\u8a00\u4e2d\u7684time.Duration\u4ec5\u4ee5int64\u7684\u5f62\u5f0f\u5185\u90e8\u4fdd\u5b58\u7eb3\u79d2\u3002\u56e0\u6b64\uff0c\u5b83\u5b9e\u9645\u4e0a\u53ea\u80fd\u8868\u793a\u7ea6290\u5e74\u5de6\u53f3\u7684\u8303\u56f4\uff0c\u8fdc\u8fdc\u4e0d\u5982time.Duration\u7684\u8868\u8fbe\u80fd\u529b\u5e7f\u6cdb\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ A Duration represents the elapsed time between two instants<\/span>\r\n<span class=\"c\">\/\/ as an int64 nanosecond count. The representation limits the<\/span>\r\n<span class=\"c\">\/\/ largest representable duration to approximately 290 years.<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">Duration<\/span> <span class=\"kt\">int64<\/span>\r\n<\/code><\/pre>\n<p>*time.Duration \u2192 *durpb.Duration\u6ca1\u6709\u9519\u8bef\u53d1\u751f\uff0c\u56e0\u6b64\u4e5f\u7701\u7565\u4e86\u9519\u8bef\u5224\u65ad\u3002<\/p>\n<h2>\u603b\u7ed3<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u6642\u9593\u7cfb\u306f\u3001Go\u306e\u6a19\u6e96\u578b\u3068protobuf\u306ewell-known\u578b\u306e\u76f8\u4e92\u5909\u63db\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u3063\u3066\u4fbf\u5229<\/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\">\u5fae\u5999\u306b\u3053\u308c\u3089\u306f\u4e92\u63db\u6027\u306e\u306a\u3044\u533a\u9593\u304c\u3042\u308b\u305f\u3081\u3001\u5909\u63db\u6642\u306b\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u3046\u308b\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u306a\u3063\u3066\u3044\u308b<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u3068\u306f\u3044\u3048\u3001\u666e\u901a\u306f\u30a8\u30e9\u30fc\u304c\u8d77\u304d\u306a\u3044\u6c17\u304c\u3059\u308b\u3002<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5e9f\u5f03+\u7684 \u6839\u636e&#8221;https:\/\/pkg.go.dev\/github.com\/golang\/prot [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-44587","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - 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