There is a requirement in the current project to send a URL request through Java to see if the URL is valid, so we can judge it by getting the status code.
try {URL u = new URL ("http://10.1.2.8:8080/fqz/page/qizha/pros_add.jsp");
try {httpurlconnection uconnection = (httpurlconnection) u.openconnection ();
try {uconnection.connect ();
System.out.println (Uconnection.getresponsecode ());
Connect = true;
InputStream is =
The status code consists of three digits, the first number defines the category of the response, and there are five possible values:
1XX: Indicates information--indicates that the request has been received, continues processing
2xx: Success--Indicates that the request has been successfully received, understood, accepted
3xx: Redirect--incomplete information needs to be further supplemented
4xx: Client Error--Request has syntax error or request cannot
Tags: Running MySQL Status View monitor running MySQL, one way is to view MySQL running status. (1) QPS (query amount per second) QPS = Questions (or Queries)/seconds mysql > show global status Like ' question% '; (2) TPs (transaction volume per second) TPS = (Com_commit + com_rollback)/seconds mysql > show glob Al sta
Status management is the process of maintaining the status and page information for multiple requests on the same page or different pages. Like all HTTP-based technologies, Web form pages are stateless, which means they do not automatically indicate whether all requests in the sequence come from the same client, or whether a single browser instance is always viewing pages or sites. In addition, every round-
Four HTTP status code to return results
4.1 Status code tells the result of requests returned from the server side
Code category Reason phrase
100-199 Information The status code is used to specify certain actions that the client should have accordingly.The 200-299 Success status code is used to indicate that the req
Running MySQL Status View monitor running MySQL, one way is to view MySQL running status. (1) QPS (query amount per second) qps = Questions (or Queries)/secondsmysql > show global status Like ' question% '; (2) TPS (transaction volume per second) tps = (Com_commit + com_rollback)/Secondsmysql > show global S Tatus like ' Com_commit ', mysql > show global
Running MySQL Status View monitor running MySQL, one way is to view MySQL running status. (1) QPS (query amount per second) qps = Questions (or Queries)/secondsmysql > show global status Like ' question% '; (2) TPS (transaction volume per second) tps = (Com_commit + com_rollback)/Secondsmysql > show global S Tatus like ' Com_commit ', mysql > show global
The complete HTTP 1.1 specification is from RFC 2616. You can view it at http://www.rfc-editor.org/on-line. The HTTP 1.1 Status Code is marked as a new feature because many browsers only Support HTTP 1.0. You should only send the status code to clients that support HTTP 1.1. The Supported Protocol version can be checked by calling request. getrequestprotocol. The remaining content of this section details t
The complete HTTP 1.1 specification comes from RFC 2616, you can in http://www.talentdigger.cn/home/link.php? Url = d3d3LnJmYy1lZGl0b3Iub3JnLw % 3D % 3D online query. The HTTP 1.1 Status Code is marked as a new feature because many browsers only Support HTTP 1.0. You should only send the status code to clients that support HTTP 1.1. The Supported Protocol version can be checked by calling request. getReques
Status codes for common HTTP request ResponsesSome of the common status codes are:$ – Server successfully returned page 404– requested page does not exist 503– service is not available1xx (Temporary response)A status code that represents a temporary response and requires the requestor to continue the operation. Code Description100 (continued) The requesting per
1. What is status detection?Each network connection includes the following information: Source Address, Destination Address, source port, and destination port, called socket pairs, protocol type, connection status (TCP protocol), and timeout time. The firewall calls this information stateful. A firewall that can detect each connection status is called a
Recently encountered a process abruptly exiting the issue, because there is no registration signalhandler so no signal is captured.However, from the log to see the status of Init Waitpid returned to 0x008b, before the status is not very understanding, the following article on the status of a more comprehensive introduction.Go to http://tsecer.blog.163.com/blog/st
These status codes represent a temporary response. The client should be prepared to receive one or more 1xx responses before receiving a regular response.100-Continue.101-Switch protocol.2XX-SuccessThis type of status code indicates that the server successfully accepted the client request.200-OK. The client request was successful.201-created.202-accepted.203-Non-authoritative information.204-no content.205-
First, about this articleThe article is mainly divided into two parts, the first is the HTTP status code Overview. This is followed by a detailed explanation of the 14 commonly used status codes.Ii. Overview of HTTP status codesThe responsibility of the status code is to describe the result of the request that is retur
Label:Table of Contents
MySQL Show Status-open database connections
MySQL Show Processlist
MySQL Show Status-summary
MySQL "Show status" Faq:can you demonstrate the MySQL show statuscommand to show MySQL variables and Status information, such as the number of open MySQL connections? I don ' t ha
By understanding the status of TCP, We Can troubleshoot and locate network or system faults.
I. TCP status
Listening: listens for connection requests from remote TCP ports.
First, the server needs to open a socket for listening, and the status is listen.
A service is provided in the listening status. a tcp
The HTTP status code is a 3-bit numeric code that represents the HTTP response status of the Web server. It is defined by the RFC 2616 specification and is extended by RFC 2518, RFC 2817, RFC 2295, RFC 2774, RFC 4918, and other specifications.1xx (Temporary response)A status code that represents a temporary response and requires the requestor to continue the oper
Some common status codes are :
200-The server successfully returned to the Web page
404-The requested Web page does not exist
503-Server Timeout
The complete list of HTTP status codes is provided below. Click on the link to learn more details. You can also access the WWW page on the HTTP status code to get more information.
I. Interim response
1XX (Temporary r
TODO ADD code here is for hiding status bar}
(note that this judgment is also triggered on screen switching, which requires filtering of the screen switching situation according to the actual situation.) )
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First, the Windowattributeschanged method is used to monitor the hiding and displaying of the status
the serial number plus 1 (packet segment 7 ).Closed: this is nothing to say, indicating the initial state.Listen: this is also an easy-to-understand state, indicating that a socket on the server is in the listening state and can accept connections.Syn_rcvd:
This status indicates that the SYN packet is received. Normally, this status is an intermediate status o
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