如何修复 Cloudant 客户端连接错误
How to fix Cloudant-client connection error
我使用 cloudant-client-1.0.0.jar 进行测试以检查与 cloudant 服务器的连接:
import com.cloudant.client.api.CloudantClient;
import com.cloudant.client.api.Database;
public class test {
private CloudantClient client=null;
public CloudantClient connect(){
client=new CloudantClient("xxx", "xxx", "xxx");
System.out.println("Connection successful! "+client.getBaseUri());
return client;
}
public Database getDb(String dbName){
Database db=connect().database(dbName, true);
System.out.println("Datase avaible - "+db.getDBUri());
return db;
}
public static void main(String[] args){
new test().getDb("_user");
}
}
但是,系统显示错误:
线程异常 "main"
java.lang.NoClassDefFoundError: org/apache/http/client/methods/HttpEntityEnclosingRequestBase
at connection.test.connect(test.java:13)
at connection.test.getDb(test.java:21)
at connection.test.main(test.java:30)
原因:
java.lang.ClassNotFoundException: org.apache.http.client.methods.HttpEntityEnclosingRequestBase
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 3 more
如何解决?
您缺少库 Apache http 客户端的依赖项。但是,您应该使用 Maven、gradle 或理解 Maven 存储库的类似构建工具。您还应该考虑升级到 2.4.1,它包含许多改进和错误修复。
我使用 cloudant-client-1.0.0.jar 进行测试以检查与 cloudant 服务器的连接:
import com.cloudant.client.api.CloudantClient;
import com.cloudant.client.api.Database;
public class test {
private CloudantClient client=null;
public CloudantClient connect(){
client=new CloudantClient("xxx", "xxx", "xxx");
System.out.println("Connection successful! "+client.getBaseUri());
return client;
}
public Database getDb(String dbName){
Database db=connect().database(dbName, true);
System.out.println("Datase avaible - "+db.getDBUri());
return db;
}
public static void main(String[] args){
new test().getDb("_user");
}
}
但是,系统显示错误:
线程异常 "main"
java.lang.NoClassDefFoundError: org/apache/http/client/methods/HttpEntityEnclosingRequestBase
at connection.test.connect(test.java:13)
at connection.test.getDb(test.java:21)
at connection.test.main(test.java:30)
原因:
java.lang.ClassNotFoundException: org.apache.http.client.methods.HttpEntityEnclosingRequestBase
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 3 more
如何解决?
您缺少库 Apache http 客户端的依赖项。但是,您应该使用 Maven、gradle 或理解 Maven 存储库的类似构建工具。您还应该考虑升级到 2.4.1,它包含许多改进和错误修复。