jetty+httpClient使用
背景:
看了https://www.cnblogs.com/donlianli/p/10954716.html这篇文章之后,突然发现自己的知识面太窄了,连这些几乎可以说基础的工具都没怎么用过,于是决定了解一下。
embed jetty使用
1、引入依赖
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.eclipse.jetty.aggregate</groupId>
<artifactId>jetty-all</artifactId>
<version>7.6.9.v20130131</version>
</dependency>
<!--方便打印-->
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>fastjson</artifactId>
<version>1.2.31</version>
</dependency>
搜索了一下embed jetty相关的文章,没有发现太多,于是就引入了上面几个jar包。
2、代码
package me.lovegao.learn.jetty; import java.io.IOException;
import java.io.PrintWriter; import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse; import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.AbstractHandler; import com.alibaba.fastjson.JSONObject; public class JettyServerMain { public static void main(String[] args) throws Exception {
Server server = new Server(8888);
server.setHandler(new HelloHandler());
server.start();
server.join();
} } class HelloHandler extends AbstractHandler { @Override
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response)
throws IOException, ServletException {
System.out.println("target:" + target
+ ",request:" + JSONObject.toJSONString(request.getParameterMap()));
long threadId = Thread.currentThread().getId();
response.setStatus(HttpServletResponse.SC_OK);
PrintWriter out = response.getWriter(); out.println("hello+" + threadId); baseRequest.setHandled(true);
} }
3、执行
在浏览器请求:http://localhost:8888/hello/world?q1=1&q2=2
控制台打印如下:
target:/hello/world,request:{"q1":["1"],"q2":["2"]}
HttpClient使用
1、引入依赖
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
<version>4.5.8</version>
</dependency>
来源:http://hc.apache.org/httpcomponents-client-4.5.x/httpclient/dependency-info.html
2、参考官网代码
public static void request1() throws Exception {
CloseableHttpClient httpclient = HttpClients.createDefault();
HttpGet httpGet = new HttpGet("http://localhost:8888/homepage?q1=v1");
CloseableHttpResponse response1 = httpclient.execute(httpGet);
try {
System.out.println(response1.getStatusLine());
HttpEntity entity1 = response1.getEntity();
byte[] res = entity1.getContent().readAllBytes();
String str = new String(res);
System.out.println("str:" + str);
// do something useful with the response body
// and ensure it is fully consumed
EntityUtils.consume(entity1);
} finally {
response1.close();
}
httpclient.close();
}
3、执行
控制台打印结果:
HTTP/1.1 200 OK
str:hello+15
4、HttpPost请求
import java.io.IOException;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List; import org.apache.http.HttpEntity;
import org.apache.http.NameValuePair;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.entity.UrlEncodedFormEntity;
import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.message.BasicNameValuePair;
import org.apache.http.util.EntityUtils; public class HttpPost { public static void main(String[] args) throws ClientProtocolException, IOException {
CloseableHttpClient httpclient = HttpClients.createDefault();
HttpPost httpPost = new HttpPost("http://ip:port/fe");
List <NameValuePair> nvps = new ArrayList <NameValuePair>();
nvps.add(new BasicNameValuePair("name", "str"));
nvps.add(new BasicNameValuePair("feature", "address"));
httpPost.setEntity(new UrlEncodedFormEntity(nvps));
CloseableHttpResponse response1 = httpclient.execute(httpPost);
try {
System.out.println(response1.getStatusLine());
HttpEntity entity1 = response1.getEntity();
byte[] res = new byte[1024];
InputStream is = entity1.getContent();
int len = 0;
while((len = is.read(res)) > 0) {
String str = new String(res, 0, len);
System.out.print(str);
}
EntityUtils.consume(entity1);
} finally {
response1.close();
}
httpclient.close();
} }
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