Intellij IDEA 的maven项目通过Java代码实现Jetty的Http服务器(推荐)
作者:海乐学习 时间:2022-02-19 20:29:13
Jetty是一个轻量级的高度可扩展的基于 java的web服务器和servlet引擎。
下面是 使用 Intellij IDEA 的maven项目 通过Java代码,实现 Jetty 的 Http服务器 从而获取到 Http 的 Get 和 Post 请求
一、添加 pom.xml
<!-- Jetty。要注意版本,版本匹配不对时,运行Jetty的应用将会报错-->
<dependency>
<groupId>org.eclipse.jetty.aggregate</groupId>
<artifactId>jetty-all</artifactId>
<version>8.0.4.v20111024</version>
</dependency>
二、在maven 加载 jetty
点击 刷新 图标 系统会自动 加载 jetty
加载完成后 就会 出现org.eclipse.jetty.aggregate:jetty-all:8.0.4.v20111024
三、新建AttendentConsoleHttpServlet.java
package com.SinaServer;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;import java.util.HashMap;
import java.util.Map;
/**
* @title: AttendentConsoleHttpServlet
* @Author wxj
* @Date: 2021/6/24 10:30
* @Version 1.0
*/
public class AttendentConsoleHttpServlet extends HttpServlet {
@Override
public void doPost(HttpServletRequest req, HttpServletResponse res) throws IOException {
System.out.println(req.toString());
BufferedReader streamReader = new BufferedReader( new InputStreamReader(req.getInputStream(), "UTF-8"));
StringBuilder responseStrBuilder = new StringBuilder();
String inputStr;
while ((inputStr = streamReader.readLine()) != null)
responseStrBuilder.append(inputStr);
System.out.println(responseStrBuilder.toString());
//允许跨域
res.setHeader("Access-Control-Allow-Origin", "*");
res.setHeader("Access-Control-Allow-Methods", "*");
res.setHeader("Access-Control-Max-Age", "3600");
res.addHeader("Access-Control-Allow-Headers", "*");
res.setHeader("Access-Control-Allow-Credentials", "*");
//
//Map<String ,String> map = JSON.parseObject(Base64.decode(responseStrBuilder.toString()),Map.class);
//this.doGet(req, res);
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response) {
response.setContentType("text/html;charset=utf-8");
response.setStatus(HttpServletResponse.SC_OK);
//允许跨域
response.setHeader("Access-Control-Allow-Origin", "*");
response.setHeader("Access-Control-Allow-Methods", "*");
response.setHeader("Access-Control-Max-Age", "3600");
response.addHeader("Access-Control-Allow-Headers", "*");
response.setHeader("Access-Control-Allow-Credentials", "*");
//
System.out.println("get request:");
Map<String, String[]> maps = request.getParameterMap();
HashMap<String,String> mapAction = new HashMap<>();
for (Map.Entry<String, String[]> entry : maps.entrySet()) {
//String cs = entry.getKey() + ":"+ Arrays.toString(entry.getValue())+";";
String cs = entry.getKey() + ":"+ entry.getValue()[0]+";";
System.out.println(cs);
mapAction.put(entry.getKey(),entry.getValue()[0]);
}
//如果包含action请求
String strResponse="";
if (mapAction.containsKey("action")){
switch (mapAction.get("action")){
case "query":
strResponse=this.query();
break;
default:
}
}
//
try {
response.getWriter().println(strResponse);
} catch (IOException e) {
e.printStackTrace();
}
}
public String query(){
String json="Hello Word! 已收到请求";
return json;
}
}
四、在App.java 中 加入
package com.SinaServer;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.ContextHandlerCollection;
import org.eclipse.jetty.servlet.ServletContextHandler;
import org.eclipse.jetty.servlet.ServletHolder;
/**
* Hello world!
*
*/
public class App
{
public static void main( String[] args )
{
System.out.println( "Hello World!111222" );
//jetty的处理集合
ContextHandlerCollection contexts = new ContextHandlerCollection();
//jetty http请求事件
ServletContextHandler context1 = new ServletContextHandler(ServletContextHandler.SESSIONS);
//httpapi
AttendentConsoleHttpServlet httpServletCli= new AttendentConsoleHttpServlet();
context1.addServlet(new ServletHolder(httpServletCli), "/httpCli");//httpapi
contexts.addHandler(context1);
//jetty服务器启动
Server server = new Server(5011);//设置端口
server.setHandler(contexts);
try {
server.start();//jetty服务器启动
System.out.println("Jetty Server 启动成功。port : 5011" );
server.join();
} catch (Exception e) {
e.printStackTrace();
System.out.println(e.getMessage());
}
}
}
五、运行 java
启动成功后 用浏览器 访问
http://192.168.1.143:5011/httpCli?action=query
来源:https://www.cnblogs.com/hailexuexi/p/14930065.html
标签:Intellij,IDEA,Http,服务器
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