我正在编写一个java应用程序,我希望通过RESTful Web服务添加事件。当我尝试从客户端应用程序添加事件时,我得到以下异常:
INFO: Error parsing HTTP request header
Note: further occurrences of HTTP request parsing errors will be logged at DEBUG level.
java.lang.IllegalArgumentException: Invalid character found in the HTTP protocol
at org.apache.coyote.http11.Http11InputBuffer.parseRequestLine(Http11InputBuffer.java:517)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:291)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:754)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1376)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Unknown Source)
但是当我从浏览器调用相同的URL时,如果我添加注释@GET,它就可以工作,但是如果我将注释@PUT或@POST而不是@GET我得到405状态代码。我在Web服务方法中更改了这些注释。我想知道是什么原因导致了这个问题,因为它可以从浏览器中正常工作,但是当从客户端应用程序调用时会抛出异常。
以下是REST服务的方法:
@POST
@Path("/add/{name}/{start}/{end}/{location}/{category}/{description}")
@Produces(MediaType.APPLICATION_JSON)
public Response addEvent(@PathParam("name") String name,@PathParam("start") String startStr,@PathParam("end") String endStr,
@PathParam("location") String location,@PathParam("category") String category,@PathParam("description") String description) {
System.out.println(name);
LocalDateTime start=service.parseLocalDateTime(startStr);
LocalDateTime end=service.parseLocalDateTime(endStr);
Event event=new Event(name,start,end,location,category,description,false);
if(service.addEvent(event)) {
return Response.status(200).build();
}
return Response.status(500).entity("Error in event adding.").build();
}
这是我的客户端方法:
public void addEvent(Event event) {
String baseUrl="http://localhost:8080/InfoEvent/api/events/";
StringBuilder sb=new StringBuilder();
sb.append(event.getName());
sb.append("/");
sb.append(event.getStart());
sb.append("/");
sb.append(event.getEnd());
sb.append("/");
sb.append(event.getLocation());
sb.append("/");
sb.append(event.getCategory());
sb.append("/");
sb.append(event.getDescription());
String parameter=sb.toString();
String stringURL=baseUrl+"add/"+parameter;
System.out.println(stringURL);
try {
URL url = new URL(stringURL);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setRequestMethod("POST");
OutputStream os = conn.getOutputStream();
// os.write("");
os.flush();
if (conn.getResponseCode() != HttpURLConnection.HTTP_OK) {
throw new RuntimeException("Failed-greskaa : HTTP error code : " + conn.getResponseCode());
}
os.close();
conn.disconnect();
} catch (Exception e) {
e.printStackTrace();
}
}
我也尝试更改客户端方法中的注释,同时也在Web服务方法中更改它,但它没有帮助。
我没有评论的声誉,
由于异常显示“解析HTTP标头时出错”和“HTTP协议中的无效字符”,因此看起来服务器不理解该请求。
这里的答案表明它可能与HTTPS和HTTP有关。 java.lang.IllegalArgumentException: Invalid character found in method name. HTTP method names must be tokens。