Question

所以我试图将Morphia用于MongoDB ORM。早些时候，我们总是将mongo-java-driver直接用于CRUD，但ORM显然更有意义。

我们的mongo-java-driver版本为3.1.0，我现在使用的是当前版本的morphia - 1.3.2。

我执行了一个简单的测试来启动并使用以下代码在测试项目中工作：

public class MorphiaTest {

  private Morphia morphia;
  private Datastore datastore;

  public MorphiaTest() {
    this.morphia = new Morphia();

    // should contain all the entity classes that we want to morphia to map
    morphia.mapPackage("com.test.entity");

    MongoClientOptions options = new MongoClientOptions.Builder().build();
    ServerAddress address = new ServerAddress("127.0.0.1", 27017);
    MongoClient client = new MongoClient(address, options);

    // configure morphia once and use different Datastore instances to connect to multiple databases
    this.datastore = morphia.createDatastore(client, "test");
  }

  public static void main(String[] args) {
    MorphiaTest morphia = new MorphiaTest();
    GroupProfile profile = new GroupProfile();
    profile.setName("First test group");
    profile.setDescription("Desc for first test group");
    profile.setTs(System.currentTimeMillis());
    profile.setType(0);
    morphia.datastore.save(profile);
  }

GroupProfile是Entity，我想写入mongo中test db中的集合，并且相当简单。

当我运行时，我收到以下错误：

INFO: Opened connection [connectionId{localValue:1, serverValue:2}] to 127.0.0.1:27017
Nov 07, 2017 2:48:50 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Monitor thread successfully connected to server with description ServerDescription{address=127.0.0.1:27017, type=STANDALONE, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 0, 15]}, minWireVersion=0, maxWireVersion=3, electionId=null, maxDocumentSize=16777216, roundTripTimeNanos=554323}
Exception in thread "main" java.lang.NoSuchMethodError: com.mongodb.InsertOptions.getBypassDocumentValidation()Ljava/lang/Boolean;
    at org.mongodb.morphia.InsertOptions.getBypassDocumentValidation(InsertOptions.java:93)
    at org.mongodb.morphia.InsertOptions.copy(InsertOptions.java:36)
    at org.mongodb.morphia.DatastoreImpl.enforceWriteConcern(DatastoreImpl.java:1245)
    at org.mongodb.morphia.DatastoreImpl.save(DatastoreImpl.java:775)
    at org.mongodb.morphia.DatastoreImpl.save(DatastoreImpl.java:758)

任何人都可以告诉我哪里出错了？

这是我的pom.xml：

<?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.bsb.test.morphia</groupId>
  <artifactId>morphiatest</artifactId>
  <version>0.1</version>
  <packaging>pom</packaging>
  <url>http://maven.apache.org</url>
  <name>${project.artifactId}-${project.version}</name>

  <dependencies>
    <dependency>
      <groupId>org.mongodb</groupId>
      <artifactId>mongo-java-driver</artifactId>
      <version>3.1.0</version>
    </dependency>
    <dependency>
      <groupId>org.mongodb.morphia</groupId>
      <artifactId>morphia</artifactId>
      <version>1.3.2</version>
      <exclusions>
        <exclusion>
          <groupId>org.mongodb</groupId>
          <artifactId>mongo-java-driver</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.3</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
        </configuration>
        <executions>
          <execution>
            <goals>
              <goal>compile</goal>
            </goals>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>versions-maven-plugin</artifactId>
        <version>2.3</version>
      </plugin>
      <plugin>
        <groupId>com.coveo</groupId>
        <artifactId>fmt-maven-plugin</artifactId>
        <version>1.8.0</version>
      </plugin>

    </plugins>
  </build>

</project>

我可能搞砸了morphia和mongo-java-driver之间的依赖关系，但似乎无法解决这个问题。

Answer 1

Morphia 1.3.2与Mongo Java Driver 3.5.0兼容。 Morphia 1.3.2 JAR将传递这种依赖性。你可以通过这种排除方式踩过传递依赖：

<dependency>
  <groupId>org.mongodb.morphia</groupId>
  <artifactId>morphia</artifactId>
  <version>1.3.2</version>
  <exclusions>
    <exclusion>
      <groupId>org.mongodb</groupId>
      <artifactId>mongo-java-driver</artifactId>
    </exclusion>
  </exclusions>
</dependency>

相反，您应该删除此依赖项：

<dependency>
  <groupId>org.mongodb</groupId>
  <artifactId>mongo-java-driver</artifactId>
  <version>3.1.0</version>
</dependency>

...并接受Morphia：1.3.2兼容的Mongo Java驱动程序的版本。

Morphia在保存到DataStore时提供NoSuchMethodError

1 个答案: