Jetty嵌入Processing.org,静态资产+;邮递
我正在尝试将Jetty嵌入到一个处理草图中。到目前为止,我使它能够服务于静态文件(草图文件夹中的html目录) 我想用一个静态页面的用户输入对一篇文章做出反应 由于我对Jetty一无所知,并且来自PHP&Ruby(RoR)web编程背景,我对Jetty的工作方式感到非常困惑 我只是想要一些类似路线的东西,除了Jetty嵌入Processing.org,静态资产+;邮递,jetty,processing,embedded-jetty,Jetty,Processing,Embedded Jetty,我正在尝试将Jetty嵌入到一个处理草图中。到目前为止,我使它能够服务于静态文件(草图文件夹中的html目录) 我想用一个静态页面的用户输入对一篇文章做出反应 由于我对Jetty一无所知,并且来自PHP&Ruby(RoR)web编程背景,我对Jetty的工作方式感到非常困惑 我只是想要一些类似路线的东西,除了 "localhost:8080/post?string=whatever" 是一个静态文件 post?string=任何可能触发函数(正在处理中)的内容,在该函数中处理提交的字符串 我已
"localhost:8080/post?string=whatever"
是一个静态文件
post?string=任何可能触发函数(正在处理中)的内容,在该函数中处理提交的字符串
我已经阅读了很多Jetty文档,但到目前为止还不知道怎么做
非常感谢您的帮助
import javax.servlet.http.HttpServletRequest;
导入javax.servlet.http.HttpServletResponse;
导入javax.servlet.ServletException;
导入java.io.IOException;
导入org.eclipse.jetty.server.server;
导入org.eclipse.jetty.server.Request;
导入org.eclipse.jetty.server.handler.AbstractHandler;
字符串poststr;
无效设置(){
服务器=新服务器();
SelectChannelConnector=new SelectChannelConnector();
连接器。设置端口(8080);
addConnector(连接器);
ResourceHandler resource_handler=新的ResourceHandler();
resource_handler.setDirectoriesListed(true);
resource_handler.setWelcomeFiles(新字符串[]{
“index.html”
}
);
resource_handler.setResourceBase(sketchPath(“”+“pftf”);
HandlerList handlers=new HandlerList();
setHandlers(新处理程序[]{
资源处理程序,新的DefaultHandler()
}
);
setHandler(处理程序);
试一试{
server.start();
join();
}
捕获(例外e){
};
}
是的,Jetty一开始可能会非常混乱,特别是当您只想做一些简单的事情(不一定是成熟的web应用程序)时
这项工作的关键是为每个其他处理程序(例如ResourceHandler)使用ContextHandler。您可以告诉ContextHandler它应该响应哪个上下文(即URL)。为ResourceHandler和自定义处理程序(例如PostHandler)创建ContextHandler后,必须将两者都放入ContextHandlerCollection(uff…)中,以便服务器知道存在哪些上下文
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;
import java.io.IOException;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.AbstractHandler;
void setup() {
/* Configure the http server */
Server server = new Server();
SelectChannelConnector connector = new SelectChannelConnector();
connector.setPort(8080);
server.addConnector(connector);
/* Resources */
ResourceHandler resourceHandler = new ResourceHandler();
resourceHandler.setDirectoriesListed(true);
resourceHandler.setWelcomeFiles(new String[] {
"index.html"
}
);
resourceHandler.setResourceBase(sketchPath("")+"pftf");
ContextHandler resourceContext = new ContextHandler();
resourceContext.setContextPath("/");
resourceContext.setHandler(resourceHandler);
/* Post API */
PostHandler postHandler = new PostHandler();
ContextHandler postContext = new ContextHandler();
postContext.setContextPath("/post");
postContext.setHandler(postHandler);
ContextHandlerCollection contexts = new ContextHandlerCollection();
contexts.setHandlers(new Handler[] {
resourceContext, postContext
}
);
server.setHandler(contexts);
/* Start the server (finally) */
try {
server.start();
server.join();
}
catch(Exception e) {
println("Could not start http server. Reason: " + e.toString());
};
}
void printCard(String mtext) {
println("Printing card with text: " + mtext);
}
您的PostHandler可能看起来像这样:
public class PostHandler extends AbstractHandler
{
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
response.setContentType("text/html;charset=utf-8");
String stringParameter = request.getParameter("string");
/* Check if the string parameter is there and not empty */
if (stringParameter != null && !stringParameter.trim().equals("")) {
response.setStatus(HttpServletResponse.SC_OK);
baseRequest.setHandled(true);
response.getWriter().println("<h1>You sent me: " + stringParameter + "</h1>");
println("Received a string via /post: " + stringParameter);
printCard(stringParameter);
}
else {
// Parameter is missing
response.setStatus(HttpServletResponse.SC_BAD_REQUEST );
baseRequest.setHandled(true);
response.getWriter().println("<h1>Error: Missing string parameter</h1>");
println("Missing string via /post.");
}
}
}
公共类PostHandler扩展了AbstractHandler
{
公共无效句柄(字符串目标、请求baseRequest、HttpServletRequest、HttpServletResponse响应)引发IOException、ServletException{
setContentType(“text/html;charset=utf-8”);
String stringParameter=request.getParameter(“字符串”);
/*检查字符串参数是否存在且不为空*/
如果(stringParameter!=null&&!stringParameter.trim()等于(“”){
response.setStatus(HttpServletResponse.SC_OK);
baseRequest.setHandled(true);
response.getWriter().println(“您发送给我:“+stringParameter+”);
println(“通过/post:+stringParameter接收到字符串);
打印卡(stringParameter);
}
否则{
//缺少参数
response.setStatus(HttpServletResponse.SC_BAD_请求);
baseRequest.setHandled(true);
response.getWriter().println(“错误:缺少字符串参数”);
println(“通过/post缺少字符串”);
}
}
}
是的,Jetty一开始可能会非常混乱,特别是当您只想做一些简单的事情(不一定是成熟的web应用程序)时
这项工作的关键是为每个其他处理程序(例如ResourceHandler)使用ContextHandler。您可以告诉ContextHandler它应该响应哪个上下文(即URL)。为ResourceHandler和自定义处理程序(例如PostHandler)创建ContextHandler后,必须将两者都放入ContextHandlerCollection(uff…)中,以便服务器知道存在哪些上下文
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.ServletException;
import java.io.IOException;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.Request;
import org.eclipse.jetty.server.handler.AbstractHandler;
void setup() {
/* Configure the http server */
Server server = new Server();
SelectChannelConnector connector = new SelectChannelConnector();
connector.setPort(8080);
server.addConnector(connector);
/* Resources */
ResourceHandler resourceHandler = new ResourceHandler();
resourceHandler.setDirectoriesListed(true);
resourceHandler.setWelcomeFiles(new String[] {
"index.html"
}
);
resourceHandler.setResourceBase(sketchPath("")+"pftf");
ContextHandler resourceContext = new ContextHandler();
resourceContext.setContextPath("/");
resourceContext.setHandler(resourceHandler);
/* Post API */
PostHandler postHandler = new PostHandler();
ContextHandler postContext = new ContextHandler();
postContext.setContextPath("/post");
postContext.setHandler(postHandler);
ContextHandlerCollection contexts = new ContextHandlerCollection();
contexts.setHandlers(new Handler[] {
resourceContext, postContext
}
);
server.setHandler(contexts);
/* Start the server (finally) */
try {
server.start();
server.join();
}
catch(Exception e) {
println("Could not start http server. Reason: " + e.toString());
};
}
void printCard(String mtext) {
println("Printing card with text: " + mtext);
}
您的PostHandler可能看起来像这样:
public class PostHandler extends AbstractHandler
{
public void handle(String target, Request baseRequest, HttpServletRequest request, HttpServletResponse response) throws IOException, ServletException {
response.setContentType("text/html;charset=utf-8");
String stringParameter = request.getParameter("string");
/* Check if the string parameter is there and not empty */
if (stringParameter != null && !stringParameter.trim().equals("")) {
response.setStatus(HttpServletResponse.SC_OK);
baseRequest.setHandled(true);
response.getWriter().println("<h1>You sent me: " + stringParameter + "</h1>");
println("Received a string via /post: " + stringParameter);
printCard(stringParameter);
}
else {
// Parameter is missing
response.setStatus(HttpServletResponse.SC_BAD_REQUEST );
baseRequest.setHandled(true);
response.getWriter().println("<h1>Error: Missing string parameter</h1>");
println("Missing string via /post.");
}
}
}
公共类PostHandler扩展了AbstractHandler
{
公共无效句柄(字符串目标、请求baseRequest、HttpServletRequest、HttpServletResponse响应)引发IOException、ServletException{
setContentType(“text/html;charset=utf-8”);
String stringParameter=request.getParameter(“字符串”);
/*检查字符串参数是否存在且不为空*/
如果(stringParameter!=null&&!stringParameter.trim()等于(“”){
response.setStatus(HttpServletResponse.SC_OK);
baseRequest.setHandled(true);
response.getWriter().println(“您发送给我:“+stringParameter+”);
println(“通过/post:+stringParameter接收到字符串);
打印卡(stringParameter);
}
否则{
//缺少参数
response.setStatus(HttpServletResponse.SC_BAD_请求);
baseRequest.setHandled(true);
response.getWriter().println(“错误:缺少字符串参数”);
println(“通过/post缺少字符串”);
}
}
}