{"id":29364,"date":"2023-03-10T06:16:48","date_gmt":"2024-03-04T04:07:00","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/groovy-groovy%e6%98%af%e4%b8%80%e7%a7%8d%e5%be%88%e9%85%b7%e7%9a%84%e8%af%ad%e8%a8%80%ef%bc%8c%e5%8f%af%e4%bb%a5%e8%bd%bb%e6%9d%be%e5%a4%84%e7%90%86mongodb-%e5%9f%ba%e6%9c%ac%e7%9a%84%e5%a2%9e\/"},"modified":"2025-08-12T13:44:25","modified_gmt":"2025-08-12T05:44:25","slug":"groovy-groovy%e6%98%af%e4%b8%80%e7%a7%8d%e5%be%88%e9%85%b7%e7%9a%84%e8%af%ad%e8%a8%80%ef%bc%8c%e5%8f%af%e4%bb%a5%e8%bd%bb%e6%9d%be%e5%a4%84%e7%90%86mongodb-%e5%9f%ba%e6%9c%ac%e7%9a%84%e5%a2%9e","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/groovy-groovy%e6%98%af%e4%b8%80%e7%a7%8d%e5%be%88%e9%85%b7%e7%9a%84%e8%af%ad%e8%a8%80%ef%bc%8c%e5%8f%af%e4%bb%a5%e8%bd%bb%e6%9d%be%e5%a4%84%e7%90%86mongodb-%e5%9f%ba%e6%9c%ac%e7%9a%84%e5%a2%9e\/","title":{"rendered":"[Groovy] Groovy\u662f\u4e00\u79cd\u5f88\u9177\u7684\u8bed\u8a00\uff0c\u53ef\u4ee5\u8f7b\u677e\u5904\u7406MongoDB -\u57fa\u672c\u7684\u589e\u5220\u6539\u67e5\u64cd\u4f5c-"},"content":{"rendered":"

\u8fd9\u662f2015\u5e74G* Advent\u65e5\u5386\u7684\u7b2c7\u5929\u6587\u7ae0\u3002
\n\u6628\u5929\u662fyukungs\u5148\u751f\u7684\u201c\u7528Groovy\u5ea6\u8fc7\u5bd2\u51ac\u7684\u6545\u4e8b\uff03gadvent\u201d\u3002
\n\u50cf\u8fd9\u6837\u80fd\u5904\u7406\u786c\u4ef6\u7684\u4eba\u771f\u7684\u5f88\u9177\uff01<\/p>\n

\u9996\u5148\u5c3d\u7ba1\u8fd9\u662f G* \u7684\u5723\u8bde\u8282\u65e5\u5386\uff0c\u4f46\u6211\u4eec\u8003\u8651\u5230\u53ef\u80fd\u4f1a\u6709\u5bf9 MongoDB \u611f\u5174\u8da3\u7684\u4eba\u4ece Google \u7b49\u5730\u65b9\u627e\u5230\u7684\u60c5\u51b5\uff0c\u6240\u4ee5\u5728\u8fd9\u91cc\u5199\u4e0b\u4e86\u4ee5\u4e0b\u7684\u6587\u5b57\u3002<\/p>\n

\u5bf9\u4e8e G* \u7528\u6237\u6765\u8bf4\uff0c\u53ef\u80fd\u4f1a\u89c9\u5f97\u6709\u4e9b\u4e0d\u81ea\u7136\uff0c\u8bf7\u8c05\u89e3\u3002<\/p>\n

\u672c\u6b21\u5185\u5bb9\u5206\u4e3a\u4e24\u4e2a\u90e8\u5206\uff0c\u4eca\u5929\u6211\u4eec\u5c06\u4f7f\u7528 Groovy \u4ece Java \u7684 mongo-java-driver \u5f00\u59cb\u57fa\u7840\u5730\u5904\u7406 MongoDB\uff0c\u660e\u5929\u6211\u4eec\u5c06\u8fdb\u4e00\u6b65\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Groovy \u7684\u5e93\u548c\u8bed\u6cd5\u66f4\u52a0\u7b80\u6613\u65b9\u4fbf\u5730\u5904\u7406 MongoDB\u3002<\/p>\n

\u4ec0\u4e48\u662fGroovy\uff1f\u6b63\u5f0f\u540d\u79f0\u662fApache Groovy\u3002
\n\u8fd9\u662f\u4e00\u79cd\u5728JVM\u4e0a\u8fd0\u884c\u7684\u52a8\u6001\u7c7b\u578b\u8bed\u8a00\uff0c\u53ef\u4ee5\u8fdb\u4e00\u6b65\u7b80\u5316Java\u8bed\u8a00\u3002
\n\u5728\u8fd0\u884cGroovy\u4e4b\u524d\uff0c\u9700\u8981\u5b89\u88c5Java 8\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u53ea\u8981\u6709Java 8\uff0c\u5b83\u5c31\u53ef\u4ee5\u8fd0\u884c\uff01
\n\u5982\u679c\u5df2\u7ecf\u5b89\u88c5\u4e86Java 8\uff0c\u8bf7\u5b89\u88c5SDKMAN\u3002
\nSDKMAN\u662f\u4e00\u4e2a\u53ef\u4ee5\u8f7b\u677e\u5b89\u88c5\u548c\u7ba1\u7406\u5404\u79cd\u4e0eGroovy\u76f8\u5173\u7684\u4ea7\u54c1\u4ee5\u53ca\u5176\u4ed6\u5404\u79cdJava\u5e73\u53f0\u4ea7\u54c1\u7684\u5de5\u5177\u3002
\n\u5b89\u88c5SDKMAN\u672c\u8eab\u975e\u5e38\u7b80\u5355\u3002
\n\u5b89\u88c5\u4e86SDKMAN\u4e4b\u540e\uff0c\u53ea\u9700\u8fd0\u884csdk install groovy\uff0c\u5373\u53ef\u5b89\u88c5\u6700\u65b0\u7248\u672c\u7684Groovy\u3002
\n\u5982\u679c\u60a8\u662fWindows\u7528\u6237\uff0c\u8bf7\u53c2\u8003posh-gvm\u3002
\n\u5982\u679c\u4e0d\u592a\u660e\u767d\uff0c\u4e5f\u53ef\u4ee5\u4f7f\u7528Groovy\u81ea\u8eab\u7684\u5b89\u88c5\u7a0b\u5e8f\u8fdb\u884c\u5b89\u88c5\uff0c\u540c\u65f6\u53c2\u8003\u4ee5\u4e0b\u6587\u7ae0\u3002
\n\u5b89\u88c5\u548c\u8fd0\u884c\uff08\u4f7f\u7528Groovy\u5165\u95e8\u7f16\u7a0b\uff09<\/p>\n

\u65f6\u9ae6\u7684Groovy\u548cMongoDB\u6211\u5df2\u7ecf\u63d0\u5230\u8fc7\uff0cGroovy\u662f\u4e00\u4e2a\u8ba9Java\u66f4\u65b9\u4fbf\u7684\u8bed\u8a00\u3002\u7b80\u800c\u8a00\u4e4b\uff0cGroovy\u5c31\u662fJava\u3002
\n\u6362\u53e5\u8bdd\u8bf4\uff0cJava\u7684MongoDB\u5e93mongo-java-driver\u4e5f\u53ef\u4ee5\u76f4\u63a5\u4eceGroovy\u4e2d\u4f7f\u7528\u3002
\n\u800c\u4e14\uff0c\u6700\u8fd1\u7684mongo-java-driver\u6bd4\u4ee5\u524d\u7684\u7248\u672c\u7b80\u5355\u5f97\u591a\uff0c\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u5904\u7406MongoDB\u3002
\n\u53e6\u5916\uff0c\u4f7f\u7528Groovy\u8fd8\u53ef\u4ee5\u51cf\u5c11\u5197\u957f\u7684\u4ee3\u7801\u3002
\n\u5bf9\u4e8e\u90a3\u4e9b\u5df2\u7ecf\u5728Java\u4e2d\u4f7f\u7528\u8fc7MongoDB\u4f46\u8fd8\u6ca1\u5c1d\u8bd5\u8fc7\u6700\u65b0\u7684MongoDB\u9a71\u52a8\u7684\u4eba\uff0c
\n\u6216\u8005\u5df2\u7ecf\u63a5\u89e6\u8fc7MongoDB\u4f46\u4ece\u672a\u4ece\u7f16\u7a0b\u8bed\u8a00\u4e2d\u64cd\u4f5c\u8fc7\u5b83\u7684\u4eba\uff0c\u8fd9\u4e9b\u5185\u5bb9\u4e5f\u6709\u53c2\u8003\u4ef7\u503c\u3002
\n\u6b64\u5916\uff0cGroovy\u8fd8\u6709\u9488\u5bf9MongoDB\u7684\u7b2c\u4e09\u65b9\u5e93GMongo\uff0c\u4f46\u6700\u65b0\u7684mongo-java-driver\u672c\u8eab\u4e5f\u80fd\u63d0\u4f9b\u76f8\u5f53\u7b80\u6d01\u7684\u4ee3\u7801\u7f16\u5199\u65b9\u5f0f\u3002\u5bf9\u4e8e\u90a3\u4e9b\u9664\u4e86GMongo\u5916\u6ca1\u6709\u4f7f\u7528\u8fc7\u5176\u4ed6Groovy\u5e93\u7684\u7528\u6237\u6765\u8bf4\uff0c\u8fd9\u4e5f\u662f\u4e00\u4e2a\u6709\u53c2\u8003\u4ef7\u503c\u7684\u5185\u5bb9\u3002<\/p>\n

\u524d\u63d0\u8fd9\u6b21\uff0c\u6211\u5b9e\u9645\u8fd0\u884c\u4ee3\u7801\u7684\u73af\u5883\u662f<\/p>\n
\n
NameValueOSLinux Mint 17MongogDB3.0.7Java1.8.0_60\u5728\u4e2d\u6587\u4e2d\u91cd\u65b0\u8868\u8fbe\u4ee5\u4e0a\u5185\u5bb9\uff1a\u8bf7\u786e\u4fdd\u5728\u9876\u90e8\u63d0\u5230\u7684\u60c5\u51b5\u4e0b\u4e8b\u5148\u5b89\u88c5\u6700\u65b0\u7248\u7684Groovy\u3002\u6b64\u5916\uff0c\u4e3a\u4e86\u6d41\u7545\u5730\u6267\u884c\u672c\u6b21\u793a\u4f8b\u4ee3\u7801\uff0c\u5efa\u8bae\u4f7f\u7528Groovy\u63a7\u5236\u53f0\u3002\u8bf7\u53c2\u8003\u8fd9\u91cc\u7684\u4f7f\u7528\u65b9\u6cd5\u3002<\/p>\n

\u5728\u8fd9\u91cc\u4e0d\u8c08\u8bbaGroovy\u8bed\u6cd5\u7684\u95ee\u9898\u3002\u4f46\u662f\uff0c\u6211\u8ba4\u4e3a\u60a8\u4ecd\u7136\u53ef\u4ee5\u4e86\u89e3\u5230Groovy\u53ef\u4ee5\u975e\u5e38\u8f7b\u677e\u5730\u64cd\u4f5cMongoDB\u3002<\/p>\n

\u5f00\u59cb\u7f16\u7801\u597d\u4e86\uff01\u90a3\u4e48\u6211\u4eec\u5c31\u5f00\u59cb\u5427\u3002<\/p>\n

\u51c6\u5907\u597d\u9996\u5148\uff0c\u6211\u4eec\u8981\u7f16\u5199\u4ee5\u4e0b\u4ee3\u7801\u3002<\/p>\n
@Grab<\/span>(<\/span>group<\/span>=<\/span>'org.mongodb'<\/span>,<\/span> module<\/span>=<\/span>'mongo-java-driver'<\/span>,<\/span> version<\/span>=<\/span>'3.1.1'<\/span>)<\/span>\r\n\r\nimport<\/span> com.mongodb.MongoClient<\/span>\r\nimport<\/span> com.mongodb.client.MongoDatabase<\/span>\r\nimport<\/span> com.mongodb.client.MongoCollection<\/span>\r\nimport<\/span> org.bson.Document<\/span>\r\nimport<\/span> static<\/span> com<\/span>.<\/span>mongodb<\/span>.<\/span>client<\/span>.<\/span>model<\/span>.<\/span>Filters<\/span>.*<\/span>\r\nimport<\/span> static<\/span> com<\/span>.<\/span>mongodb<\/span>.<\/span>client<\/span>.<\/span>model<\/span>.<\/span>Sorts<\/span>.*<\/span>\r\nimport<\/span> static<\/span> com<\/span>.<\/span>mongodb<\/span>.<\/span>client<\/span>.<\/span>model<\/span>.<\/span>Updates<\/span>.*<\/span>\r\nimport<\/span> com.mongodb.client.result.UpdateResult<\/span>\r\n<\/code><\/pre>\n
\u53ea\u9700\u6839\u636e\u8fd9\u4e2a\u63cf\u8ff0\uff0c\u5373\u53ef\u5b8c\u6210mongo-java-driver\u7684\u4e0b\u8f7d\u3001\u8def\u5f84\u8bbe\u7f6e\u4ee5\u53ca\u672c\u6b21\u793a\u4f8b\u4e2d\u6240\u9700\u7684\u7c7b\u7684\u5bfc\u5165\u3002<\/p>\n
\u8fde\u63a5\u5230MongoDB
\n\u8bf7\u5728\u4e0a\u8ff0\u4ee3\u7801\u7684\u5e95\u90e8\u6dfb\u52a0\u4ee5\u4e0b\u5185\u5bb9\u3002
\n\u8bf7\u6ce8\u610f\uff0c\u4eca\u540e\u8bf7\u4e0d\u65ad\u5c06\u6240\u6709\u4ee3\u7801\u6dfb\u52a0\u5230\u73b0\u6709\u4ee3\u7801\u7684\u4e0b\u65b9\u3002<\/p>\n
\/\/ MongoDB\u672c\u4f53\u306b\u63a5\u7d9a<\/span>\r\nMongoClient<\/span> mongoClient<\/span> =<\/span> new<\/span> MongoClient<\/span>(<\/span>\"localhost\"<\/span>,<\/span> 27017<\/span>)<\/span>\r\n\/\/ \u5229\u7528\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\uff08\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u540d\u306fgroovy\uff09<\/span>\r\nMongoDatabase<\/span> db<\/span> =<\/span> mongoClient<\/span>.<\/span>getDatabase<\/span>(<\/span>\"groovy\"<\/span>)<\/span>\r\n\/\/ \u5229\u7528\u3059\u308b\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u63a5\u7d9a\uff08\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u540d\u306ftest\uff09<\/span>\r\nMongoCollection<\/span><<\/span>Document<\/span>><\/span> collection<\/span> =<\/span> db<\/span>.<\/span>getCollection<\/span>(<\/span>\"test\"<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u8fd9\u5c31\u662f\u5168\u90e8\u4e86\uff01\u4f5c\u4e3aMongoDB\u7684\u7279\u70b9\uff0c\u7279\u522b\u662f\u5728\u6ca1\u6709\u4e8b\u5148\u5b58\u5728\u6570\u636e\u5e93\u6216\u96c6\u5408\u7684\u60c5\u51b5\u4e0b\u4e5f\u53ef\u4ee5\u4f7f\u7528\u3002
\n\u6b64\u5916\uff0cGroovy\u5728\u58f0\u660e\u53d8\u91cf\u65f6\u4e0d\u9700\u8981\u6307\u5b9a\u7c7b\u578b\uff0c\u56e0\u6b64\u53ef\u4ee5\u4f7f\u7528def\u5173\u952e\u5b57\u66f4\u7b80\u6d01\u5730\u7f16\u5199\u5982\u4e0b\u3002<\/p>\n
def<\/span> mongoClient<\/span> =<\/span> new<\/span> MongoClient<\/span>(<\/span>\"localhost\"<\/span>,<\/span> 27017<\/span>)<\/span>\r\ndef<\/span> db<\/span> =<\/span> mongoClient<\/span>.<\/span>getDatabase<\/span>(<\/span>\"groovy\"<\/span>)<\/span>\r\ndef<\/span> collection<\/span> =<\/span> db<\/span>.<\/span>getCollection<\/span>(<\/span>\"test\"<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u6b64\u65f6\uff0cgroovy\u6570\u636e\u5e93\u548ctest\u96c6\u5408\u90fd\u8fd8\u6ca1\u6709\u5728MongoDB\u4e0a\u521b\u5efa\u3002
\n\u5728\u4fdd\u5b58\u503c\u5230\u96c6\u5408\u9636\u6bb5\uff0c\u96c6\u5408\u5c06\u4f1a\u81ea\u52a8\u521b\u5efa\u3002<\/p>\n
\u5220\u9664\u6587\u4ef6\u7a81\u7136\u3067\u3059\u304c\u3001\u4eca\u540e\u591a\u6b21\u6267\u884c\u793a\u4f8b\u4ee3\u7801\uff0c\u6570\u636e\u5c06\u4e0d\u65ad\u79ef\u7d2f\u5728MongoDB\u4e2d\u4f1a\u53d8\u5f97\u9ebb\u70e6\u3002
\n\u56e0\u6b64\uff0c\u6211\u4eec\u5199\u4e00\u4e2a\u4ee3\u7801\u6765\u6bcf\u6b21\u5220\u9664\u6570\u636e\u3002<\/p>\n
\/\/ DELETE ALL EXISTING DOCUMENTS<\/span>\r\nif<\/span> (<\/span>collection<\/span>.<\/span>count<\/span>()<\/span> ><\/span> 0<\/span>)<\/span> {<\/span>\r\n    collection<\/span>.<\/span>deleteMany<\/span>(<\/span>new<\/span> Document<\/span>())<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5982\u679ctest\u96c6\u5408\u4e2d\u6709\u6587\u6863\uff0c\u90a3\u4e48\u6bcf\u6b21\u90fd\u4f1a\u88ab\u5220\u9664\u3002
\n\u867d\u7136\u53ef\u80fd\u8fd8\u4e0d\u592a\u7406\u89e3\u4e0a\u8ff0\u5185\u5bb9\uff0c\u4f46\u53ea\u8981\u7ee7\u7eed\u5f80\u4e0b\u8fdb\u884c\uff0c\u5c31\u4f1a\u9010\u6e10\u660e\u767d\uff0c\u6240\u4ee5\u8bf7\u6beb\u4e0d\u72b9\u8c6b\u5730\u7ee7\u7eed\u524d\u8fdb\u5427\u3002<\/p>\n
\u4fdd\u5b58\u6587\u6863
\n\u90a3\u4e48\uff0c\u73b0\u5728\u8ba9\u6211\u4eec\u5f00\u59cb\u4fdd\u5b58\u6587\u4ef6\u5427\uff01<\/p>\n
\/\/ 1\u4ef6\u767b\u9332\u3059\u308b<\/span>\r\nDocument<\/span> doc<\/span> =<\/span> new<\/span> Document<\/span>(<\/span>\"name\"<\/span>,<\/span> \"MongoDB\"<\/span>)<\/span>\r\n                .<\/span>append<\/span>(<\/span>\"type\"<\/span>,<\/span> \"database\"<\/span>)<\/span>\r\n                .<\/span>append<\/span>(<\/span>\"count\"<\/span>,<\/span> 1<\/span>)<\/span>\r\n                .<\/span>append<\/span>(<\/span>\"info\"<\/span>,<\/span> new<\/span> Document<\/span>(<\/span>\"x\"<\/span>,<\/span> 203<\/span>).<\/span>append<\/span>(<\/span>\"y\"<\/span>,<\/span> 102<\/span>))<\/span>\r\ncollection<\/span>.<\/span>insertOne<\/span>(<\/span>doc<\/span>)<\/span>\r\n\r\n\/\/ \u8907\u6570\u4ef6\u4e00\u6c17\u306b\u767b\u9332\u3059\u308b<\/span>\r\nList<\/span><<\/span>Document<\/span>><\/span> documents<\/span> =<\/span> (<\/span>1<\/span>..<\/span>10<\/span>).<\/span>collect<\/span> {<\/span> new<\/span> Document<\/span>(<\/span>\"i\"<\/span>,<\/span> it<\/span>).<\/span>append<\/span>(<\/span>\"name\"<\/span>,<\/span> it<\/span>)<\/span> }<\/span>\r\ncollection<\/span>.<\/span>insertMany<\/span>(<\/span>documents<\/span>)<\/span>\r\n<\/code><\/pre>\n
\u4e0d\u4ec5\u53ef\u4ee5\u7528\u4e8e\u6ce8\u518c\u6587\u6863\uff0c\u8fd8\u53ef\u4ee5\u7528\u4e8e\u66f4\u65b0\u548c\u5220\u9664\u6587\u6863\u7684\u65b9\u6cd5\u4e2d\uff0c\u6709\u4e00\u4e2a\u7528\u4e8e\u5904\u7406\u5355\u4e2a\u6587\u6863\u7684\u65b9\u6cd5\uff0c\u8fd8\u6709\u4e00\u4e2a\u7528\u4e8e\u540c\u65f6\u5904\u7406\u591a\u4e2a\u6587\u6863\u7684\u65b9\u6cd5\u3002
\n\u4ece\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\u53ef\u4ee5\u4e00\u76ee\u4e86\u7136\u5730\u770b\u51fa\uff0cinsertOne()\u65b9\u6cd5\u7528\u4e8e\u5355\u4e2a\u6587\u6863\u7684\u6ce8\u518c\uff0c\u800cinsertMany()\u65b9\u6cd5\u7528\u4e8e\u540c\u65f6\u6ce8\u518c\u591a\u4e2a\u6587\u6863\u3002
\n\u4e3a\u4e86\u751f\u6210\u8981\u6ce8\u518c\u5230MongoDB\u7684\u6587\u6863\uff0c\u6211\u4eec\u9700\u8981\u521b\u5efa\u4e00\u4e2a\u540d\u4e3aDocument\u7684\u7c7b\u7684\u5b9e\u4f8b\u3002
\n\u4f7f\u7528\u65b9\u6cd5\u975e\u5e38\u7b80\u5355\uff0c\u5c06\u952e\u540d\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\u4f20\u9012\uff0c\u5c06\u503c\u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\u4f20\u9012\u3002\u5373\u4f7f\u5728\u5c06\u503c\u4f20\u9012\u7ed9\u5b9e\u4f8b\u751f\u6210\u65f6\u7684\u6784\u9020\u51fd\u6570\u65f6\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5c06\u503c\u4f20\u9012\u7ed9\u540e\u7eed\u8fd4\u56de\u7684\u5b9e\u4f8b\u7684append\u65b9\u6cd5\u6765\u751f\u6210MongoDB\u6587\u6863\u3002
\n\u5982\u679c\u6587\u6863\u662f\u5d4c\u5957\u7684\uff0c\u53ef\u4ee5\u901a\u8fc7\u7ed9\u503c\u6307\u5b9a\u4e00\u4e2a\u65b0\u7684Document\u5bf9\u8c61\uff0c\u5c31\u50cf\u4e0a\u9762\u793a\u4f8b\u4e2d\u7684info\u90e8\u5206\u4e00\u6837\uff0c\u6765\u5b9e\u73b0\u3002\u4e0a\u8ff0doc\u7684\u5185\u5bb9\u662f<\/p>\n
{<\/span>\r\n    \"name\"<\/span> :<\/span> \"MongoDB\"<\/span>,<\/span> \r\n    \"type\"<\/span> :<\/span> \"database\"<\/span>,<\/span> \r\n    \"count\"<\/span> :<\/span> 1<\/span>,<\/span>\r\n    \"info\"<\/span> :<\/span> {<\/span>\r\n        \"x\"<\/span> :<\/span> 203<\/span>,<\/span>\r\n        \"y\"<\/span> :<\/span> 102<\/span> \r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
\u5c31\u50cf\u8fd9\u6837\u7684JSON\u3002
\n\u4f60\u53ef\u4ee5\u5c06\u8fd9\u4e2aJSON\uff08Document\u5bf9\u8c61\uff09\u4f20\u9012\u7ed9insertOne\uff0c\u6216\u8005\u5c06\u5b83\u5b58\u5165List\u5e76\u5c06\u8be5\u5217\u8868\u4f20\u9012\u7ed9insertMany\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5c06\u6587\u6863\u4fdd\u5b58\u5230MongoDB\u4e2d\u3002
\n\u6b64\u65f6\uff0cgroovy\u6570\u636e\u5e93\u548ctest\u96c6\u5408\u90fd\u5df2\u7ecf\u4fdd\u5b58\u5230MongoDB\u4e2d\u3002<\/p>\n
\u83b7\u53d6\u6587\u4ef6
\n\u83b7\u53d6\u6587\u6863\uff0c\u76f8\u5f53\u4e8eSQL\u4e2d\u7684SELECT\u8bed\u53e5\u3002
\n\u57fa\u672c\u4e0a\u53ea\u9700\u8981\u8fd0\u884cCollection\u5bf9\u8c61\u7684find\u65b9\u6cd5\u5373\u53ef\u3002
\n\u8fd0\u884cfind\u65b9\u6cd5\u540e\uff0c\u5c06\u8fd4\u56de\u4e00\u4e2a\u5305\u542b\u5b58\u50a8\u7684\u6587\u6863\u7684\u5217\u8868\u3002
\n\u8fdb\u4e00\u6b65\u8fd0\u884cfirst\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4ece\u8be5\u5217\u8868\u4e2d\u83b7\u53d6\u7b2c\u4e00\u4e2a\u6587\u6863\u5bf9\u8c61\u3002<\/p>\n
\/\/ \u5168\u4ef6\u53d6\u5f97<\/span>\r\nassert<\/span> 11<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>().<\/span>size<\/span>()<\/span>\r\n\r\n\/\/ \u6700\u521d\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u5f97<\/span>\r\nDocument<\/span> myDoc<\/span> =<\/span> collection<\/span>.<\/span>find<\/span>().<\/span>first<\/span>()<\/span>\r\nassert<\/span> \"MongoDB\"<\/span> ==<\/span> myDoc<\/span>.<\/span>name<\/span>\r\n<\/code><\/pre>\n
\u5f88\u7b80\u5355\u3002
\n\u90a3\u4e48\uff0c\u5f53\u6211\u4eec\u5728\u641c\u7d22\u65f6\u8981\u6307\u5b9a\u6761\u4ef6\uff0c\u5e94\u8be5\u600e\u4e48\u505a\u5462\uff1f
\n\u4e5f\u5f88\u7b80\u5355\uff0c\u53ea\u9700\u5728find\u4e2d\u76f4\u63a5\u5199\u4e0b\u6761\u4ef6\u5373\u53ef\u3002
\n\u5c31\u50cf\u76f4\u63a5\u4eceMongoDB\u7684mongo shell\u4e2d\u64cd\u4f5c\u4e00\u6837\u65b9\u4fbf\u6d41\u7545\uff01<\/p>\n
myDoc<\/span> =<\/span> collection<\/span>.<\/span>find<\/span>(<\/span>eq<\/span>(<\/span>'i'<\/span>,<\/span> 5<\/span>)).<\/span>first<\/span>()<\/span>\r\nassert<\/span> 5<\/span> ==<\/span> myDoc<\/span>.<\/span>i<\/span>\r\nassert<\/span> 45<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span>gte<\/span>(<\/span>'i'<\/span>,<\/span>5<\/span>)).<\/span>sum<\/span>{<\/span>it<\/span>.<\/span>i<\/span>}<\/span> \/\/ \u30b7\u30f3\u30d7\u30eb\u306a\u53d6\u5f97\u6761\u4ef6<\/span>\r\nassert<\/span> 30<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span> and<\/span>(<\/span>gt<\/span>(<\/span>'i'<\/span>,<\/span>5<\/span>),<\/span>lt<\/span>(<\/span>'i'<\/span>,<\/span>10<\/span>))<\/span> ).<\/span>sum<\/span>{<\/span>it<\/span>.<\/span>i<\/span>}<\/span> \/\/ AND\u3067\u8907\u6570\u306e\u6761\u4ef6\u3092\u6307\u5b9a<\/span>\r\n<\/code><\/pre>\n
\u6709\u4e00\u4e2a\u8bb0\u8ff0.sum{it.i}\uff0c\u8fd9\u662fGroovy\u7684\u65b9\u6cd5\u3002
\n\u5b83\u8868\u793a\u4ece\u5b58\u50a8\u5728\u5217\u8868\u4e2d\u7684\u6bcf\u4e2a\u5143\u7d20\u4e2d\u83b7\u53d6i\u7684\u603b\u548c\u7684\u64cd\u4f5c\u3002
\n\u4f60\u4f1a\u53d1\u73b0\uff0c\u81ea\u7136\u5730\u5c06\u8868\u8fbe\u5f0f\u4eceMongoDB\u6d41\u5411Groovy\u662f\u53ef\u884c\u7684\u3002
\n\u4f7f\u7528Groovy\uff0c\u751a\u81f3\u53ef\u4ee5\u5982\u6b64\u7b80\u5355\u5730\u8ba1\u7b97\u603b\u548c\uff01
\n\u6709\u5173\u53ef\u7528\u7684\u6bd4\u8f83\u8fd0\u7b97\u7b26\uff08\u5982gt\u548clt\uff09\u8bf7\u53c2\u8003Filters\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u793a\u4f8b\uff0c\u5c06\u6839\u636e\u6307\u5b9a\u7684\u503c\u8fdb\u884c\u6392\u5e8f\uff0c\u5e76\u83b7\u53d6\u7b2c\u4e00\u4e2a\u6587\u6863\u7684i\u7684\u503c\u3002<\/p>\n
\/\/ i\u3068\u3044\u3046\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u6301\u3064\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u3001\u964d\u9806\u3067\u53d6\u5f97\u3059\u308b\u3002\u305d\u3057\u3066\u3001\u6700\u521d\u306e\u5024\u3092\u53d6\u5f97\u3002<\/span>\r\n\/\/ \u306a\u304a\u3001sort\u3068descending\u306f\u3001com.mongodb.client.model.Sorts\u30af\u30e9\u30b9\u306b\u3042\u308b\u3002<\/span>\r\nassert<\/span> 10<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span> exists<\/span>(<\/span>'i'<\/span>)<\/span> ).<\/span>sort<\/span>(<\/span>descending<\/span>(<\/span>'i'<\/span>)).<\/span>first<\/span>().<\/span>i<\/span>\r\n<\/code><\/pre>\n
\u7531\u4e8eMongoDB\u662f\u9762\u5411\u6587\u6863\u7684\u6570\u636e\u5e93\uff0c\u4e0e\u5173\u7cfb\u578b\u6570\u636e\u5e93\u4e0d\u540c\uff0c\u6587\u6863\u53ef\u4ee5\u542b\u6709\u6216\u4e0d\u542b\u6709\u7279\u5b9a\u7684\u5b57\u6bb5\u3002
\n\u56e0\u6b64\uff0c\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528exists\u9996\u5148\u68c0\u7d22\u51fa\u5177\u6709\u5b57\u6bb5”i”\u7684\u6587\u6863\uff0c\u7136\u540e\u6309\u7167\u5b57\u6bb5”i”\u964d\u5e8f\u6392\u5217\uff0c\u5e76\u4ece\u4e2d\u83b7\u53d6\u7b2c\u4e00\u4e2a\u6587\u6863\u7684”i”\u7684\u503c\u3002
\n\u6709\u5173sort\u7684\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u8003Sorts\u3002<\/p>\n
\u6587\u6863\u7684\u66f4\u65b0
\n\u63a5\u4e0b\u6765\u662f\u6587\u4ef6\u7684\u66f4\u65b0\u3002\u76f8\u5f53\u4e8eSQL\u4e2d\u7684UPDATE\u64cd\u4f5c\u3002<\/p>\n
\/\/ UpdateOne\u306e\u7b2c1\u5f15\u6570\u306b\u6761\u4ef6\u5f0f\u3001\u7b2c2\u5f15\u6570\u306bUPDATE\u3067\u5b9f\u884c\u3059\u308b\u5f0f\u3092\u4e0e\u3048\u308b\u3002<\/span>\r\n\/\/ \u5b58\u5728\u3057\u306a\u3044\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u4e0e\u3048\u308c\u3070\u8a72\u5f53\u3059\u308b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u305d\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u8ffd\u52a0\u3055\u308c\u308b\u3002\u4ee5\u4e0b\u306fi\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u8ffd\u52a0\u3055\u308c\u308b<\/span>\r\n\/\/ \u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306f\u3001\u5358\u7d14\u306b\u305d\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u3092\u4e0a\u66f8\u304d\u3059\u308b\u3002<\/span>\r\ncollection<\/span>.<\/span>updateOne<\/span>(<\/span> eq<\/span>(<\/span>'name'<\/span>,<\/span> 'MongoDB'<\/span>),<\/span> set<\/span>(<\/span>'i'<\/span>,<\/span> 1<\/span>)<\/span> )<\/span>\r\n\r\n\/\/ UPDATE\u3067\u8907\u6570\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3057\u305f\u3044\u5834\u5408\u306f\u3001combine\u306e\u4e2d\u306b\u8a18\u8ff0\u3059\u308b\u3002<\/span>\r\n\/\/ name\u30d5\u30a3\u30fc\u30eb\u30c9\u304cMongoDB\u3068\u3044\u3046\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u30921\u4ef6\u66f4\u65b0\u3059\u308b\u3002<\/span>\r\n\/\/ i\u30d5\u30a3\u30fc\u30eb\u30c9\u3068\u3001count\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u305d\u308c\u305e\u308c1\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3055\u308c\u308b\u3002<\/span>\r\ncollection<\/span>.<\/span>updateOne<\/span>(<\/span> eq<\/span>(<\/span>'name'<\/span>,<\/span> 'MongoDB'<\/span>),<\/span> combine<\/span>(<\/span> inc<\/span>(<\/span>'i'<\/span>,<\/span>1<\/span>),<\/span> inc<\/span>(<\/span>'count'<\/span>,<\/span>1<\/span>)<\/span> )<\/span> )<\/span>\r\n\r\n\/\/ \u8907\u6570\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u4e00\u6c17\u306bUPDATE<\/span>\r\n\/\/ i\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u304c8\u3088\u308a\u5927\u304d\u3044\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306ei\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u309210\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3059\u308b\u3002<\/span>\r\nUpdateResult<\/span> ur<\/span> =<\/span> collection<\/span>.<\/span>updateMany<\/span>(<\/span>gt<\/span>(<\/span>'i'<\/span>,<\/span>8<\/span>),<\/span> inc<\/span>(<\/span>'i'<\/span>,<\/span>10<\/span>))<\/span> \/\/ \u3053\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306fi\u304c9\u306810\u306e\u3082\u306e\u306f\u3001i\u306e\u5024\u306b10\u3092\u52a0\u7b97\u3059\u308b\u3002<\/span>\r\n\r\n\/\/ \u66f4\u65b0\u3055\u308c\u305f\u304b\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3002\u306a\u304a\u3001collect\u3068sum\u306fGroovy\u306e\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9\uff01<\/span>\r\nassert<\/span> 39<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span>gt<\/span>(<\/span>'i'<\/span>,<\/span>8<\/span>)).<\/span>sum<\/span>{<\/span>it<\/span>.<\/span>i<\/span>}<\/span>\r\nassert<\/span> 2<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span>eq<\/span>(<\/span>'name'<\/span>,<\/span> 'MongoDB'<\/span>)).<\/span>first<\/span>().<\/span>i<\/span>\r\nassert<\/span> 2<\/span> ==<\/span> ur<\/span>.<\/span>matchedCount<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u60a8\u770b\u770b\u4e0a\u9762\u7684\u6e90\u4ee3\u7801\u548c\u6ce8\u91ca\uff0c\u5927\u6982\u5c31\u80fd\u660e\u767d\u4e86\u3002
\n\u5982\u679c\u60a8\u53ea\u60f3\u66f4\u65b0\u4e00\u4e2a\u6587\u6863\uff0c\u53ef\u4ee5\u4f7f\u7528updateOne\uff0c\u5982\u679c\u60f3\u6279\u91cf\u66f4\u65b0\u591a\u4e2a\u6587\u6863\uff0c\u53ef\u4ee5\u4f7f\u7528updateMany\u3002
\n\u6bcf\u4e2a\u65b9\u6cd5\u90fd\u9700\u8981\u4f20\u5165\u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u8981\u66f4\u65b0\u7684\u6587\u6863\u6761\u4ef6\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u8981\u66f4\u65b0\u7684\u5185\u5bb9\u3002
\n\u60a8\u53ef\u4ee5\u53c2\u8003Updates\u4e2d\u63d0\u4f9b\u7684\u66f4\u65b0\u65b9\u6cd5\u5217\u8868\uff0c\u5982inc\u6216set\u7b49\u3002
\n\u4e0eSQL\u4e2d\u7684UPDATE TABLE_NAME SET i=1 WHERE i > 8\u7684\u8bed\u53e5\u76f8\u6bd4\uff0c\u66f4\u65b0\u5185\u5bb9\u9996\u5148\u51fa\u73b0\uff0c\u7136\u540e\u901a\u8fc7WHERE\u6307\u5b9a\u6761\u4ef6\uff0c\u6240\u4ee5\u987a\u5e8f\u6b63\u597d\u76f8\u53cd\u3002<\/p>\n
\u5220\u9664\u6587\u4ef6\u4f60\u5df2\u7ecf\u5728\u7a0b\u5e8f\u7684\u9876\u90e8\u5199\u4e0b\u4e86\u5220\u9664\u6240\u6709\u8bb0\u5f55\u7684\u4ee3\u7801\u4e86\u5417\uff1f
\n\u4ee5\u4e0b\u662f\u53ea\u5220\u9664\u68c0\u7d22\u5230\u7684\u4e00\u6761\u8bb0\u5f55\u7684\u65b9\u6cd5\u3002<\/p>\n
\/\/ 1\u4ef6\u524a\u9664<\/span>\r\ncollection<\/span>.<\/span>deleteOne<\/span>(<\/span>gt<\/span>(<\/span>'i'<\/span>,<\/span> 8<\/span>))<\/span>\r\n<\/code><\/pre>\n
\u5982\u679c\u53ea\u9700\u8981\u5220\u9664\u4e00\u6761\u8bb0\u5f55\uff0c\u4e0e\u521b\u5efa\u6216\u66f4\u65b0\u6587\u6863\u4e00\u6837\uff0c\u53ef\u4ee5\u4f7f\u7528deleteOne\uff1b\u5982\u679c\u9700\u8981\u5220\u9664\u6240\u6709\u76f8\u5173\u7684\u6587\u6863\uff0c\u53ef\u4ee5\u4f7f\u7528deleteMany\u3002<\/p>\n
\u5176\u4ed6\u5728\u66f4\u65b0\u548c\u5220\u9664\u6587\u6863\u65f6\u6307\u5b9a\u6761\u4ef6\u662f\u53ef\u4ee5\u7684\uff0c\u4f46\u5982\u679c\u9002\u7528\u4e8e\u6240\u6709\u6587\u4ef6\u4f1a\u600e\u6837\u5462\uff1f\u8fd9\u4e2a\u95ee\u9898\u662f\uff0c\u5c31\u50cf\u6700\u5f00\u59cb\u7684deleteMany\u4e00\u6837\uff0c\u5c06new Document()\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\u6761\u4ef6\u4f20\u9012\uff0c\u6240\u6709\u6587\u6863\u90fd\u5c06\u6210\u4e3a\u5904\u7406\u7684\u5bf9\u8c61\u3002<\/p>\n
\u603b\u7ed3
\n\u4f60\u89c9\u5f97\u600e\u4e48\u6837\u5462\uff1f\u4eceG*\u5f00\u53d1\u8005\u548cJava\u5f00\u53d1\u8005\u90a3\u91cc\uff0c\u4f7f\u7528\u6700\u65b0\u7684JavaDriver\u53ef\u4ee5\u8ba9\u5904\u7406MongoDB\u7684\u4ee3\u7801\u76f8\u5f53\u7b80\u5355\u3002\u4eceMongoDB\u7528\u6237\u90a3\u91cc\uff0c\u4f7f\u7528Groovy\u53ef\u4ee5\u5f88\u5bb9\u6613\u5730\u901a\u8fc7\u7a0b\u5e8f\u6765\u5904\u7406MongoDB\u3002\u4f46\u662fGroovy\u7684\u4fbf\u5229\u6027\u4e0d\u4ec5\u4ec5\u9650\u4e8e\u6b64\uff01\u660e\u5929\u6211\u4f1a\u53d1\u5e03\u66f4\u591a\u4f7f\u7528Groovy\u529f\u80fd\u7684\u793a\u4f8b\uff01<\/p>\n
\u6700\u540e\uff0c\u6211\u4f1a\u5728\u4e0b\u9762\u9644\u4e0a\u5f53\u524d\u4ee3\u7801\u7684\u5168\u90e8\u5185\u5bb9\u3002<\/p>\n
@Grab<\/span>(<\/span>group<\/span>=<\/span>'org.mongodb'<\/span>,<\/span> module<\/span>=<\/span>'mongo-java-driver'<\/span>,<\/span> version<\/span>=<\/span>'3.1.1'<\/span>)<\/span>\r\n\r\nimport<\/span> com.mongodb.MongoClient<\/span>\r\nimport<\/span> com.mongodb.client.MongoDatabase<\/span>\r\nimport<\/span> com.mongodb.client.MongoCollection<\/span>\r\nimport<\/span> org.bson.Document<\/span>\r\nimport<\/span> static<\/span> com<\/span>.<\/span>mongodb<\/span>.<\/span>client<\/span>.<\/span>model<\/span>.<\/span>Filters<\/span>.*<\/span>\r\nimport<\/span> static<\/span> com<\/span>.<\/span>mongodb<\/span>.<\/span>client<\/span>.<\/span>model<\/span>.<\/span>Sorts<\/span>.*<\/span>\r\nimport<\/span> static<\/span> com<\/span>.<\/span>mongodb<\/span>.<\/span>client<\/span>.<\/span>model<\/span>.<\/span>Updates<\/span>.*<\/span>\r\nimport<\/span> com.mongodb.client.result.UpdateResult<\/span>\r\n\r\n\/\/ MongoDB\u672c\u4f53\u306b\u63a5\u7d9a<\/span>\r\nMongoClient<\/span> mongoClient<\/span> =<\/span> new<\/span> MongoClient<\/span>(<\/span>\"localhost\"<\/span>,<\/span> 27017<\/span>)<\/span>\r\n\/\/ \u5229\u7528\u3059\u308b\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306b\u63a5\u7d9a\uff08\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u540d\u306fgroovy\uff09<\/span>\r\nMongoDatabase<\/span> db<\/span> =<\/span> mongoClient<\/span>.<\/span>getDatabase<\/span>(<\/span>\"groovy\"<\/span>)<\/span>\r\n\/\/ \u5229\u7528\u3059\u308b\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u306b\u63a5\u7d9a\uff08\u30b3\u30ec\u30af\u30b7\u30e7\u30f3\u540d\u306ftest\uff09<\/span>\r\nMongoCollection<\/span><<\/span>Document<\/span>><\/span> collection<\/span> =<\/span> db<\/span>.<\/span>getCollection<\/span>(<\/span>\"test\"<\/span>)<\/span>\r\n\r\n\/\/ DELETE ALL EXISTING DOCUMENTS<\/span>\r\nif<\/span> (<\/span>collection<\/span>.<\/span>count<\/span>()<\/span> ><\/span> 0<\/span>)<\/span> {<\/span>\r\n    collection<\/span>.<\/span>deleteMany<\/span>(<\/span>new<\/span> Document<\/span>())<\/span>\r\n}<\/span>\r\n\r\n\/\/ 1\u4ef6\u767b\u9332\u3059\u308b<\/span>\r\nDocument<\/span> doc<\/span> =<\/span> new<\/span> Document<\/span>(<\/span>\"name\"<\/span>,<\/span> \"MongoDB\"<\/span>)<\/span>\r\n                .<\/span>append<\/span>(<\/span>\"type\"<\/span>,<\/span> \"database\"<\/span>)<\/span>\r\n                .<\/span>append<\/span>(<\/span>\"count\"<\/span>,<\/span> 1<\/span>)<\/span>\r\n                .<\/span>append<\/span>(<\/span>\"info\"<\/span>,<\/span> new<\/span> Document<\/span>(<\/span>\"x\"<\/span>,<\/span> 203<\/span>).<\/span>append<\/span>(<\/span>\"y\"<\/span>,<\/span> 102<\/span>))<\/span>\r\ncollection<\/span>.<\/span>insertOne<\/span>(<\/span>doc<\/span>)<\/span>\r\n\r\n\/\/ \u8907\u6570\u4ef6\u4e00\u6c17\u306b\u767b\u9332\u3059\u308b<\/span>\r\nList<\/span><<\/span>Document<\/span>><\/span> documents<\/span> =<\/span> (<\/span>1<\/span>..<\/span>10<\/span>).<\/span>collect<\/span> {<\/span> new<\/span> Document<\/span>(<\/span>\"i\"<\/span>,<\/span> it<\/span>).<\/span>append<\/span>(<\/span>\"name\"<\/span>,<\/span> it<\/span>)<\/span> }<\/span>\r\ncollection<\/span>.<\/span>insertMany<\/span>(<\/span>documents<\/span>)<\/span>\r\n\r\nassert<\/span> 11<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>().<\/span>size<\/span>()<\/span>\r\n\r\n\/\/ \u6700\u521d\u306e\u30ec\u30b3\u30fc\u30c9\u3092\u53d6\u5f97<\/span>\r\nDocument<\/span> myDoc<\/span> =<\/span> collection<\/span>.<\/span>find<\/span>().<\/span>first<\/span>()<\/span>\r\nassert<\/span> \"MongoDB\"<\/span> ==<\/span> myDoc<\/span>.<\/span>name<\/span>\r\n\r\nmyDoc<\/span> =<\/span> collection<\/span>.<\/span>find<\/span>(<\/span>eq<\/span>(<\/span>'i'<\/span>,<\/span> 5<\/span>)).<\/span>first<\/span>()<\/span>\r\nassert<\/span> 5<\/span> ==<\/span> myDoc<\/span>.<\/span>i<\/span>\r\nassert<\/span> 45<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span>gte<\/span>(<\/span>'i'<\/span>,<\/span>5<\/span>)).<\/span>sum<\/span>{<\/span>it<\/span>.<\/span>i<\/span>}<\/span> \/\/ \u30b7\u30f3\u30d7\u30eb\u306a\u53d6\u5f97\u6761\u4ef6<\/span>\r\nassert<\/span> 30<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span> and<\/span>(<\/span>gt<\/span>(<\/span>'i'<\/span>,<\/span>5<\/span>),<\/span>lt<\/span>(<\/span>'i'<\/span>,<\/span>10<\/span>))<\/span> ).<\/span>sum<\/span>{<\/span>it<\/span>.<\/span>i<\/span>}<\/span> \/\/ AND\u3067\u8907\u6570\u306e\u6761\u4ef6\u3092\u6307\u5b9a<\/span>\r\n\r\n\/\/ i\u3068\u3044\u3046\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u6301\u3064\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u3001\u964d\u9806\u3067\u53d6\u5f97\u3059\u308b\u3002\u305d\u3057\u3066\u3001\u6700\u521d\u306e\u5024\u3092\u53d6\u5f97\u3002<\/span>\r\n\/\/ \u306a\u304a\u3001sort\u3068descending\u306f\u3001com.mongodb.client.model.Sorts\u30af\u30e9\u30b9\u306b\u3042\u308b\u3002<\/span>\r\nassert<\/span> 10<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span> exists<\/span>(<\/span>'i'<\/span>)<\/span> ).<\/span>sort<\/span>(<\/span>descending<\/span>(<\/span>'i'<\/span>)).<\/span>first<\/span>().<\/span>i<\/span>\r\n\r\n\/\/ UpdateOne\u306e\u7b2c1\u5f15\u6570\u306b\u6761\u4ef6\u5f0f\u3001\u7b2c2\u5f15\u6570\u306bUPDATE\u3067\u5b9f\u884c\u3059\u308b\u5f0f\u3092\u4e0e\u3048\u308b\u3002<\/span>\r\n\/\/ \u5b58\u5728\u3057\u306a\u3044\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u4e0e\u3048\u308c\u3070\u8a72\u5f53\u3059\u308b\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306b\u305d\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u8ffd\u52a0\u3055\u308c\u308b\u3002\u4ee5\u4e0b\u306fi\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u8ffd\u52a0\u3055\u308c\u308b<\/span>\r\n\/\/ \u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u5b58\u5728\u3059\u308b\u5834\u5408\u306f\u3001\u5358\u7d14\u306b\u305d\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u3092\u4e0a\u66f8\u304d\u3059\u308b\u3002<\/span>\r\ncollection<\/span>.<\/span>updateOne<\/span>(<\/span> eq<\/span>(<\/span>'name'<\/span>,<\/span> 'MongoDB'<\/span>),<\/span> set<\/span>(<\/span>'i'<\/span>,<\/span> 1<\/span>)<\/span> )<\/span>\r\n\r\n\/\/ UPDATE\u3067\u8907\u6570\u306e\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u30a2\u30c3\u30d7\u30c7\u30fc\u30c8\u3057\u305f\u3044\u5834\u5408\u306f\u3001combine\u306e\u4e2d\u306b\u8a18\u8ff0\u3059\u308b\u3002<\/span>\r\n\/\/ name\u30d5\u30a3\u30fc\u30eb\u30c9\u304cMongoDB\u3068\u3044\u3046\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u30921\u4ef6\u66f4\u65b0\u3059\u308b\u3002<\/span>\r\n\/\/ i\u30d5\u30a3\u30fc\u30eb\u30c9\u3068\u3001count\u30d5\u30a3\u30fc\u30eb\u30c9\u304c\u305d\u308c\u305e\u308c1\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3055\u308c\u308b\u3002<\/span>\r\ncollection<\/span>.<\/span>updateOne<\/span>(<\/span> eq<\/span>(<\/span>'name'<\/span>,<\/span> 'MongoDB'<\/span>),<\/span> combine<\/span>(<\/span> inc<\/span>(<\/span>'i'<\/span>,<\/span>1<\/span>),<\/span> inc<\/span>(<\/span>'count'<\/span>,<\/span>1<\/span>)<\/span> )<\/span> )<\/span>\r\n\r\n\/\/ \u8907\u6570\u306e\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u3092\u4e00\u6c17\u306bUPDATE<\/span>\r\n\/\/ i\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u304c8\u3088\u308a\u5927\u304d\u3044\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8\u306ei\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u5024\u309210\u30a4\u30f3\u30af\u30ea\u30e1\u30f3\u30c8\u3059\u308b\u3002<\/span>\r\nUpdateResult<\/span> ur<\/span> =<\/span> collection<\/span>.<\/span>updateMany<\/span>(<\/span>gt<\/span>(<\/span>'i'<\/span>,<\/span>8<\/span>),<\/span> inc<\/span>(<\/span>'i'<\/span>,<\/span>10<\/span>))<\/span> \/\/ \u3053\u306e\u30b5\u30f3\u30d7\u30eb\u3067\u306fi\u304c9\u306810\u306e\u3082\u306e\u306f\u3001i\u306e\u5024\u306b10\u3092\u52a0\u7b97\u3059\u308b\u3002<\/span>\r\n\r\n\/\/ \u66f4\u65b0\u3055\u308c\u305f\u304b\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3002\u306a\u304a\u3001collect\u3068sum\u306fGroovy\u306e\u4fbf\u5229\u306a\u30e1\u30bd\u30c3\u30c9\uff01<\/span>\r\nassert<\/span> 39<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span>gt<\/span>(<\/span>'i'<\/span>,<\/span>8<\/span>)).<\/span>sum<\/span>{<\/span>it<\/span>.<\/span>i<\/span>}<\/span>\r\nassert<\/span> 2<\/span> ==<\/span> collection<\/span>.<\/span>find<\/span>(<\/span>eq<\/span>(<\/span>'name'<\/span>,<\/span> 'MongoDB'<\/span>)).<\/span>first<\/span>().<\/span>i<\/span>\r\nassert<\/span> 2<\/span> ==<\/span> ur<\/span>.<\/span>matchedCount<\/span>\r\n\r\n\/\/ 1\u4ef6\u524a\u9664<\/span>\r\ncollection<\/span>.<\/span>deleteOne<\/span>(<\/span>gt<\/span>(<\/span>'i'<\/span>,<\/span> 8<\/span>))<\/span>\r\n<\/code><\/pre>\n
\u8bf7\u8fdb\u884c\u53c2\u8003
\n\u5f00\u59cb\u4f7f\u7528MongoDB\uff08Java\u7248\uff09
\nMongoDB Java\u9a71\u52a8\u7a0b\u5e8f
\nApache Groovy
\nSDKMAN
\n\u8fc7\u6ee4\u5668
\n\u6392\u5e8f
\n\u66f4\u65b0<\/p>\n","protected":false},"excerpt":{"rendered":"
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