有nebula-java链接nebula graph自定义cypher查询接口的案例吗,想参考下
如果是 web service 到给定 space 的服务,做 space 内的数据读写,用 session pool
如果涉及跨 space 请求,用底层一点的 connection_pool 的话也可以,获得一个 session 然后可以 execute() 字符串查询,之后要记得把 session release。
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这个适合生产环境开发一些接口使用吗
可以的,nebula-java 就是官方出品的。
好的 谢谢
报错信息去论坛搜下哈
这个忘记回了,aslist 后面就是个数组,你只要参考这种形式就行了
(new hostaddress(host:“127.0.0.1”,port:9669),new hostaddress(host:“127.0.0.2”,port:9669),new hostaddress(host:“127.0.0.3”,port:9669))
ip 记得改成你的节点的 ip,端口号记得也改下。
报错信息可以文本贴一下吗?
/Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home/bin/java -Dmaven.multiModuleProjectDirectory=/Users/dillon.wang/Downloads/workspace/xiaoying/nebula-java/examples -Dmaven.home=/Users/dillon.wang/Downloads/software/apache-maven-3.5.4 -Dclassworlds.conf=/Users/dillon.wang/Downloads/software/apache-maven-3.5.4/bin/m2.conf -Dmaven.ext.class.path=/Applications/IntelliJ IDEA.app/Contents/plugins/maven/lib/maven-event-listener.jar -javaagent:/Applications/IntelliJ IDEA.app/Contents/lib/idea_rt.jar=58949:/Applications/IntelliJ IDEA.app/Contents/bin -Dfile.encoding=UTF-8 -classpath /Users/dillon.wang/Downloads/software/apache-maven-3.5.4/boot/plexus-classworlds-2.5.2.jar org.codehaus.classworlds.Launcher -Didea.version=2021.1.3 package
[INFO] Scanning for projects...
[WARNING]
[WARNING] Some problems were encountered while building the effective model for com.vesoft:examples:jar:3.0-SNAPSHOT
[WARNING] The expression ${parent.version} is deprecated. Please use ${project.parent.version} instead.
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING]
[INFO] Inspecting build with total of 1 modules...
[INFO] Not installing Nexus Staging features:
[INFO] * Preexisting staging related goal bindings found in 1 modules.
[INFO]
[INFO] ------------------------< com.vesoft:examples >-------------------------
[INFO] Building examples 3.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[WARNING] The POM for com.vesoft:client:jar:3.0-SNAPSHOT is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.584 s
[INFO] Finished at: 2022-11-30T17:39:08+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project examples: Could not resolve dependencies for project com.vesoft:examples:jar:3.0-SNAPSHOT: Could not find artifact com.vesoft:client:jar:3.0-SNAPSHOT -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException
Process finished with exit code 1
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.vesoft</groupId>
<artifactId>nebula</artifactId>
<packaging>pom</packaging>
<version>3.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<jts.version>1.16.1</jts.version>
</properties>
<!-- More Project Information -->
<name>nebula-java</name>
<description>Nebula Java Client 2.0</description>
<url>https://github.com/vesoft-inc/nebula-java</url>
<scm>
<connection>scm:git:https://github.com/vesoft-inc/nebula-java</connection>
<url>https://github.com/vesoft-inc/nebula-java</url>
<developerConnection>scm:git:https://github.com/vesoft-inc/nebula-java</developerConnection>
</scm>
<licenses>
<license>
<name>Apache License, Version 2.0</name>
<url>https://www.apache.org/licenses/LICENSE-2.0.txt</url>
<distribution>repo</distribution>
<comments>license</comments>
</license>
</licenses>
<developers>
<developer>
<id>nebula</id>
<name>Nebula Graph</name>
<email>nebula-java@vesoft-inc.com</email>
<organization>vesoft</organization>
<roles>
<role>architect</role>
<role>developer</role>
</roles>
</developer>
</developers>
<modules>
<module>client</module>
<module>examples</module>
</modules>
<profiles>
<!-- Deployment profile (required so these plugins are only used when deploying) -->
<profile>
<id>deploy</id>
<build>
<plugins>
<!-- Source plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-source-plugin</artifactId>
<version>3.2.0</version>
<executions>
<execution>
<id>attach-sources</id>
<goals>
<goal>jar-no-fork</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- Javadoc plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-javadoc-plugin</artifactId>
<version>3.2.0</version>
<executions>
<execution>
<id>attach-javadocs</id>
<goals>
<goal>jar</goal>
</goals>
</execution>
</executions>
</plugin>
<!-- GPG plugin -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-gpg-plugin</artifactId>
<version>1.6</version>
<executions>
<execution>
<id>sign-artifacts</id>
<phase>verify</phase>
<goals>
<goal>sign</goal>
</goals>
<configuration>
<!-- Prevent `gpg` from using pinentry programs -->
<gpgArguments>
<arg>--pinentry-mode</arg>
<arg>loopback</arg>
</gpgArguments>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>
<distributionManagement>
<repository>
<id>ossrh</id>
<name>Nexus Release Repository</name>
<url>https://oss.sonatype.org/service/local/staging/deploy/maven2</url>
</repository>
<snapshotRepository>
<id>ossrh</id>
<name>Nexus Snapshot Repository</name>
<url>https://oss.sonatype.org/content/repositories/snapshots</url>
</snapshotRepository>
</distributionManagement>
<build>
<plugins>
<!-- Nexus Staging Plugin -->
<plugin>
<groupId>org.sonatype.plugins</groupId>
<artifactId>nexus-staging-maven-plugin</artifactId>
<version>1.6.8</version>
<extensions>true</extensions>
<configuration>
<serverId>ossrh</serverId>
<nexusUrl>https://oss.sonatype.org/</nexusUrl>
<autoReleaseAfterClose>true</autoReleaseAfterClose>
</configuration>
</plugin>
<plugin>
<groupId>org.jacoco</groupId>
<artifactId>jacoco-maven-plugin</artifactId>
<version>0.8.7</version>
<executions>
<execution>
<goals>
<goal>prepare-agent</goal>
</goals>
</execution>
<execution>
<id>report</id>
<phase>test</phase>
<goals>
<goal>report</goal>
</goals>
</execution>
</executions>
</plugin>
</plugins>
</build>
</project>
官网直接下载下来的
来,看下这个。(顺便)我用了 snapshot 做关键词搜的。
稍等,我让研发明天给你看看哈。
本地编译一下,不要只编译example这个module, 要编译root。 是idea的问题
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