Error in Java code for Eclipse: the import Org.apache cannot be resolved

In Eclipse, toss Java code.

Take the previous code from Android and use it.

The result appears the import Org.apache cannot be resolved error:

"Resolution Process"

1. Here:

For help, Eclispe development cannot import Org.apache package

And

The import Org.apache cannot be resolved

All said, let go:

Add External Jar ' s Configure build path---Libraries, project--Build path--

But the pit daddy is, did not say, here the

Org.apache

is which jar package belongs to.

2. Now that I can't find

Org.apache

So, given that I'm here, it's all:

?

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import org.apache.http.HttpEntity;import org.apache.http.HttpResponse;import org.apache.http.HttpStatus;import org.apache.http.NameValuePair;import org.apache.http.client.ClientProtocolException;import org.apache.http.client.CookieStore;//import org.apache.http.client.HttpClient;import org.apache.http.client.entity.UrlEncodedFormEntity;import org.apache.http.client.methods.HttpGet;import org.apache.http.client.methods.HttpPost;import org.apache.http.client.methods.HttpUriRequest;import org.apache.http.cookie.Cookie;import org.apache.http.impl.client.BasicCookieStore;import org.apache.http.impl.client.DefaultHttpClient;//import org.apache.http.impl.cookie.BasicClientCookie;import org.apache.http.params.HttpParams;import org.apache.http.protocol.BasicHttpContext;import org.apache.http.protocol.HttpContext;import org.apache.http.client.params.ClientPNames;import org.apache.http.client.protocol.ClientContext;import org.apache.http.util.EntityUtils;

That is, all:

Org.apache.http

Then go and find org.apache.http first.

3. Reference:

Excuse me, who has org.apache.http this bag?

Suddenly thought, looks like this:

Org.apache.http

is the corresponding Android inside, not the standard Java library.

4. So, go to what others say, find this library in Apache's official website.

Search:

Download Org.apache.http

And find http://hc.apache.org/downloads.cgi, go download

HttpClient 4.2.5.zip

After decompression, get:

Httpcomponents-client-4.2.5-bin\httpcomponents-client-4.2.5\lib

Here are a lot of jars:

Try it first:

Then all the org.apache.http are normal:

Summary

Org.apache, not a library in standard Java. So in eclipse, it can't be recognized automatically.

Org.apache includes a bunch of related libraries, and here's the org.apache.http, so:

You need to find the corresponding org.apache.http-related jar package and add it to the current project.

1. Where to find Org.apache.http

To the Apache official website:

http://hc.apache.org/downloads.cgi

To download:

HttpClient 4.2.5.zip

Then, after downloading, unzip, can be in:

Httpcomponents-client-4.2.5-bin\httpcomponents-client-4.2.5\lib

See the respective JAR packages in the following:

Commons-codec-1.6.jar Commons-logging-1.1.1.jar Fluent-hc-4.2.5.jar Httpclient-4.2.5.jar Httpclient-cache-4.2.5.jar Httpcore-4.2.4.jar Httpmime-4.2.5.jar

2. How to add a jar to the current project

See:

Tutorial How to add a library (jar package) to eclipse

http://www.crifan.com/java_eclipse_the_import_org_apache_cannot_be_resolved/

Error in Java code for Eclipse: the import Org.apache cannot be resolved