{"id":50140,"date":"2023-02-21T19:50:48","date_gmt":"2022-12-22T10:04:11","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b0%9d%e8%af%95%e4%ba%86%e4%b8%80%e4%b8%8b-cassandra-%e7%9a%84-java-%e5%af%b9%e8%b1%a1%e6%98%a0%e5%b0%84%e5%99%a8%e3%80%82\/"},"modified":"2024-04-29T15:38:43","modified_gmt":"2024-04-29T07:38:43","slug":"%e6%88%91%e5%b0%9d%e8%af%95%e4%ba%86%e4%b8%80%e4%b8%8b-cassandra-%e7%9a%84-java-%e5%af%b9%e8%b1%a1%e6%98%a0%e5%b0%84%e5%99%a8%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e6%88%91%e5%b0%9d%e8%af%95%e4%ba%86%e4%b8%80%e4%b8%8b-cassandra-%e7%9a%84-java-%e5%af%b9%e8%b1%a1%e6%98%a0%e5%b0%84%e5%99%a8%e3%80%82\/","title":{"rendered":"\u6211\u5c1d\u8bd5\u4e86\u4e00\u4e0b Cassandra \u7684 Java \u5bf9\u8c61\u6620\u5c04\u5668"},"content":{"rendered":"<h1>\u5c1d\u8bd5\u4f7f\u7528 Cassandra \u7684 Java \u7269\u4ef6\u6620\u5c04\u5de5\u5177\u8fdb\u884c\u64cd\u4f5c<\/h1>\n<p>\u5f53\u5c1d\u8bd5\u8fd0\u884c\u4eceDataStax\u5b98\u65b9\u624b\u518c\u4e2d\u590d\u5236\u7c98\u8d34\u7684\u793a\u4f8b\u4ee3\u7801\u65f6\u7684\u8bb0\u5f55\u3002<\/p>\n<h2>\u524d\u63d0 &#8211; Qian ti<\/h2>\n<p>In Chinese, the phrase &#8220;\u524d\u63d0&#8221; can be paraphrased as &#8220;\u524d\u63d0\u6761\u4ef6&#8221; (qian ti tiao jian).<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Ubuntu 17.04<\/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\">Cassandra 3.10<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">Java \u5074\u306e Cassandra Driver 3.2.0<\/ul>\n<h2>\u51c6\u5907\u4e2d<\/h2>\n<h3>Cassandra\u7684\u4e00\u65b9<\/h3>\n<ol>\n<li style=\"list-style-type: none;\">\n<ol>Cassandra\u7684\u5b89\u88c5<\/ol>\n<\/li>\n<\/ol>\n<p>$ wget http:\/\/ftp.jaist.ac.jp\/pub\/apache\/cassandra\/3.10\/apache-cassandra-3.10-bin.tar.gz<br \/>\n$ tar -zxvf apache-cassandra-3.10-bin.tar.gz<br \/>\n$ sudo mv apache-cassandra-3.10\/ \/opt\/cassandra<\/p>\n<p>\u542f\u52a8Cassandra\u670d\u52a1\u5668<\/p>\n<p>$ \/opt\/cassandra\/bin\/cassandra<\/p>\n<p>\u521b\u5efaKeyspace\uff08\u540d\u79f0\uff1aks\uff09<\/p>\n<p>$ \/opt\/cassandra\/bin\/cqlsh 127.0.0.1 -e &#8220;\\<br \/>\nCREATE KEYSPACE ks\\<br \/>\nWITH REPLICATION = { &#8216;class&#8217;: &#8216;SimpleStrategy&#8217;, &#8216;replication_factor&#8217;: 1 };&#8221;<\/p>\n<p>\u521b\u5efaTable\uff08\u540d\u79f0\uff1ausers\uff09<\/p>\n<p>$ \/opt\/cassandra\/bin\/cqlsh 127.0.0.1 -e &#8220;\\<br \/>\nCREATE TABLE ks.users (\\<br \/>\nuser_id uuid,\\<br \/>\nname text,\\<br \/>\nstrength int,\\<br \/>\nPRIMARY KEY(user_id, name)\\<br \/>\n);&#8221;<\/p>\n<h3>\u5728Java\u4e00\u7aef<\/h3>\n<p>pom.xml<\/p>\n<p>cassandra-driver-core \u3068 cassandra-driver-mapping \u306e\u4f9d\u5b58\u3092\u8ffd\u52a0\u3059\u308b<\/p>\n<p>pom.xml<br \/>\n&#8230;<\/p>\n<p>com.datastax.cassandra<br \/>\ncassandra-driver-core<br \/>\n3.2.0<\/p>\n<p>com.datastax.cassandra<br \/>\ncassandra-driver-mapping<br \/>\n3.2.0<\/p>\n<p>&#8230;<\/p>\n<p>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9<\/p>\n<p>\u30de\u30c3\u30d4\u30f3\u30b0\u5bfe\u8c61\u306e\u30af\u30e9\u30b9<\/p>\n<p>User.java<br \/>\npackage sample;<\/p>\n<p>import com.datastax.driver.mapping.annotations.ClusteringColumn;<br \/>\nimport com.datastax.driver.mapping.annotations.Column;<br \/>\nimport com.datastax.driver.mapping.annotations.Param;<br \/>\nimport com.datastax.driver.mapping.annotations.PartitionKey;<br \/>\nimport com.datastax.driver.mapping.annotations.Table;<br \/>\nimport java.util.UUID;<\/p>\n<p>@Table(keyspace = &#8220;ks&#8221;, name = &#8220;users&#8221;,<br \/>\nreadConsistency = &#8220;QUORUM&#8221;,<br \/>\nwriteConsistency = &#8220;QUORUM&#8221;,<br \/>\ncaseSensitiveKeyspace = false,<br \/>\ncaseSensitiveTable = false)<br \/>\npublic class User {<\/p>\n<p>@PartitionKey<br \/>\n@Column(name = &#8220;user_id&#8221;)<br \/>\nprivate UUID userId;<\/p>\n<p>@ClusteringColumn<br \/>\nprivate String name;<\/p>\n<p>private int strength;<\/p>\n<p>public User(UUID userId, String name, int strength) {<br \/>\nthis.userId = userId;<br \/>\nthis.name = name;<br \/>\nthis.strength = strength;<br \/>\n}<br \/>\n}<\/p>\n<p>\u30e1\u30a4\u30f3\u30af\u30e9\u30b9<\/p>\n<p>Main.java<br \/>\npackage sample;<\/p>\n<p>import com.datastax.driver.core.Cluster;<br \/>\nimport com.datastax.driver.core.Session;<br \/>\nimport com.datastax.driver.mapping.Mapper;<br \/>\nimport com.datastax.driver.mapping.MappingManager;<br \/>\nimport java.util.UUID;<\/p>\n<p>public class Main {<\/p>\n<p>public static void main(String[] args) {<br \/>\nCluster cluster = null;<br \/>\ntry {<br \/>\ncluster = Cluster.builder()<br \/>\n.addContactPoint(&#8220;127.0.0.1&#8221;)<br \/>\n.build();<br \/>\nSession session = cluster.connect();<br \/>\nMappingManager manager = new MappingManager(session);<br \/>\nMapper mapper = manager.mapper(User.class);<\/p>\n<p>User u = new User(UUID.randomUUID(), &#8220;John Doe&#8221;, 9999);<br \/>\nmapper.save(u);<\/p>\n<p>} finally {<br \/>\nif (cluster != null) {<br \/>\ncluster.close();<br \/>\n}<br \/>\n}<br \/>\n}<br \/>\n}<\/p>\n<h2>\u8fd0\u884c\u7ed3\u679c<\/h2>\n<p>\u5728\u6267\u884c\u4e0a\u8ff0\u4e3b\u7c7b\u4e4b\u540e\uff0c\u53ef\u4ee5\u901a\u8fc7 cqlsh \u6765\u68c0\u67e5\u6570\u636e\u662f\u5426\u5df2\u7ecf\u63d2\u5165\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nv\">$ <\/span>\/opt\/cassandra\/bin\/cqlsh 127.0.0.1 <span class=\"nt\">-e<\/span> <span class=\"s2\">\"SELECT * FROM ks.users;\"<\/span>\r\n\r\n user_id                              | name     | strength\r\n<span class=\"nt\">--------------------------------------<\/span>+----------+----------\r\n e918961b-57c1-4f5d-8c4e-9d08e9ea4e7a | John Doe |     9999\r\n\r\n<span class=\"o\">(<\/span>1 rows<span class=\"o\">)<\/span>\r\n<\/code><\/pre>\n<h2>\u8bf7\u53c2\u8003<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">https:\/\/github.com\/datastax\/java-driver\/blob\/3.x\/manual\/README.md<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">https:\/\/github.com\/datastax\/java-driver\/blob\/3.x\/manual\/object_mapper<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>\u5c1d\u8bd5\u4f7f\u7528 Cassandra \u7684 Java \u7269\u4ef6\u6620\u5c04\u5de5\u5177\u8fdb\u884c\u64cd\u4f5c \u5f53\u5c1d\u8bd5\u8fd0\u884c\u4eceDataStax\u5b98\u65b9\u624b\u518c\u4e2d\u590d\u5236\u7c98 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50140","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) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u6211\u5c1d\u8bd5\u4e86\u4e00\u4e0b Cassandra \u7684 Java \u5bf9\u8c61\u6620\u5c04\u5668 - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u6211\u5c1d\u8bd5\u4e86\u4e00\u4e0b-cassandra-\u7684-java-\u5bf9\u8c61\u6620\u5c04\u5668\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" 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