Org.apache.httpcomponents httpcore fluent-hc httpasyncclient httpclient httpclient-android httpclient-cache httpclient-osgi httpclient-win httpcomponents-asyncclient httpcomponents-client httpcomponents-core httpcore httpcore-nio httpmime. HttpCore deals with representation of HTTP messages, and with transport logic for sending and receiving those messages. It also defines a kind of framework infrastructure so other modules can plug in functionality. Unlike the old code, HttpCore is not specific to the client side of HTTP communication, it can also be used for the server side.
Apache Http Core Jar Download
Apache Http Core Maven
I haven't used an Apache HTTP client in a few years. So, I've started
fresh. Having written precious little code carefully following
http://hc.apache.org/httpcomponents-client-4.5.x/quickstart.html, I get
this exception as soon as I call createDefault():
/* CloseableHttpClient client = HttpClients.createDefault();*/
HttpGet get = new HttpGet( query );
get.setHeader( ACCEPT_CHARSET, UTF8 );
get.setHeader( 'Accept', 'application/xml,application/json' );
CloseableHttpResponse response = client.execute( get );
HttpEntity entity = response.getEntity();
try
{
return entity.getContent();
}
catch( IOException e )
{
throw new IOException( e.getMessage() + ' occurred getting query
response' );
}
finally
{
response.close();
}
I die similarly in my POST requests.
The full stack trace follows (below), but here's what I have in
/pom.xml/:. I added the httpcore out of desperation and googling for
this problem. No matter, it happens with or without it and no matter
what version I add.
<apache.http.client.version>*4.5.4*</apache.http.client.version>
* <dependency>**
**<groupId>org.apache.httpcomponents</groupId>**
**<artifactId>httpclient</artifactId>**
**<version>${apache.http.client.version}</version>**
** </dependency>*
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>*4.4.7*</version>
</dependency>
What have I done wrong?
Here's the stacktrace:
*java.lang.NoClassDefFoundError: org/apache/http/config/Lookup*
at
org.apache.http.impl.client.HttpClients.createDefault(HttpClients.java:56)
at
com.imatsolutions.utilities.ApacheClientOperations.getQuery(ApacheClientOperations.java:123)
at
com.imatsolutions.utilities.ApacheClientOperationsTest.testStatus(ApacheClientOperationsTest.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at
com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.ClassNotFoundException: org.apache.http.config.Lookup
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 29 more
fresh. Having written precious little code carefully following
http://hc.apache.org/httpcomponents-client-4.5.x/quickstart.html, I get
this exception as soon as I call createDefault():
/* CloseableHttpClient client = HttpClients.createDefault();*/
HttpGet get = new HttpGet( query );
get.setHeader( ACCEPT_CHARSET, UTF8 );
get.setHeader( 'Accept', 'application/xml,application/json' );
CloseableHttpResponse response = client.execute( get );
HttpEntity entity = response.getEntity();
try
{
return entity.getContent();
}
catch( IOException e )
{
throw new IOException( e.getMessage() + ' occurred getting query
response' );
}
finally
{
response.close();
}
I die similarly in my POST requests.
The full stack trace follows (below), but here's what I have in
/pom.xml/:. I added the httpcore out of desperation and googling for
this problem. No matter, it happens with or without it and no matter
what version I add.
<apache.http.client.version>*4.5.4*</apache.http.client.version>
* <dependency>**
**<groupId>org.apache.httpcomponents</groupId>**
**<artifactId>httpclient</artifactId>**
**<version>${apache.http.client.version}</version>**
** </dependency>*
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpcore</artifactId>
<version>*4.4.7*</version>
</dependency>
What have I done wrong?
Here's the stacktrace:
*java.lang.NoClassDefFoundError: org/apache/http/config/Lookup*
at
org.apache.http.impl.client.HttpClients.createDefault(HttpClients.java:56)
at
com.imatsolutions.utilities.ApacheClientOperations.getQuery(ApacheClientOperations.java:123)
at
com.imatsolutions.utilities.ApacheClientOperationsTest.testStatus(ApacheClientOperationsTest.java:42)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at
org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at
org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at
org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at
org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at
org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at
org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)
at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at
com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Caused by: java.lang.ClassNotFoundException: org.apache.http.config.Lookup
at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 29 more