交互協議

Ⅰ webservice怎麼實現基於http協議post交互

HTTP：一種詳細復規定了瀏覽制器和萬維網伺服器之間互相通信的規則,通過網際網路傳送萬維網文檔的數據傳送協議.
TCP：Transmission Control Protocol 傳輸控制協議TCP是一種面向連接（連接導向）的、可靠的、基於位元組流的運輸層（Transport layer）通信協議,由IETF的RFC 793說明（specified）.
UDP：是User Datagram Protocol的簡稱,中文名是用戶數據報協議,是 OSI 參考模型中一種無連
接的傳輸層協議,提供面向事務的簡單不可靠信息傳送服務,IETF RFC 768是UDP的正式規范.
IP：是英文Internet Protocol（網路之間互連的協議）的縮寫,中文簡稱為「網協」,也就是為計算機網路相互連接進行通信而設計的協議.

Ⅱ OSPF路由協議包文交互過程

ospf是個內部網關協議,也就是說它是在一個自治系統(AS)內部使用的
如果你要使用ospf協議的路由器跟別的AS內部的路由器發送數據包,那就要通過必須通過自治系統邊界路由器來轉發,自治系統邊界路由器只是主幹區域area0的哦
一個AS分成多個區域,其中有一個主幹區域,和若干個從區域
如果是不同區域間傳輸數據,它們的數據也必須要通過區域邊界路由器轉發,區域邊界路由器是每個區域都有的,用於區域間的數據中轉
每台路由器都要建立並維護一個本區域內部的鏈路狀態資料庫,發送數據前,它會根據資料庫計算出最短開銷的路徑.然後通過那條路徑開始傳輸咯

Ⅲ javascript和erlang怎麼交互協議

Running Concurrently

Running a JavaScript function in the background is easy with Er.js:
Er.spawn(myBackgroundFunction);

Er.spawn starts a new Er.js process running
myBackgroundFunction, and returns its process id.

Because processes are really coroutines, you have to call yield
before any function which might block. Calling yield will create a
continuation trampoline that can be rerun by Er.js when it』s time for the
process to continue executing. For example:
function myBackgroundFunction() {
// Wait for 4 seconds
yield Er.sleep(4000);
// Do other things…
}

Sending Messages

In Erlang and Er.js, each process has a built-in message queue that other
processes use to send it messages. Posting to the message queue never blocks
the caller, and the destination process for the message can read them off the
queue whenever it wants. Messages are just regular associative arrays, similar
to hashtables, which are easy to create in JavaScript. For example:
Er.send(myPid, { Hello: new Date(), From: Er.pid() });

Here, myPid is assumed to be the process id from some former
call to Er.spawn. This call sends a message with the keys
「Hello」 and 「From」. Hello is a
Date object with the current date, and From is the
process id of the current process, which can always be fetched with
Er.pid(). Passing the current pid means the myPid
process can send us messages in return, since we』ve told it who we
are.

Receiving & Pattern Matching

When myBackgroundFunction wants to read off its message queue,
it calls the Er.receive function, telling it the kind of message
it』s interested in, and a function to call when such a message is
received. Interest in a message is expressed using a message pattern which,
just like the messages themselves, is a simple hash table.
yield Er.receive({ Hello: Date, From: _ }, // pattern
function(msg) { // handler
log(」Hello=」 + msg.Hello);
log(」From=」 + msg.From);
});

This matches any message in the current process』s queue which has a
Hello key with a Date object as the value, and with a
From key with any value. Explicit value matching for e.g. number
and string literals and DOM elements is also possible. The 「_」 for
the From key means that any value is accepted. There are a few
other matching rules as well that make this a very powerful but simple message
dispatching mechanism.

If a message in the process queue matches a pattern passed to
Er.receive, it is passed to the handler function found in the
argument list following the pattern. The handler can look up the key values it
needs in order to act on the message. It can also send messages to other
processes, spawn new processes, receive queued messages or perform other work.

Because the Er.receive call doesn』t finish until a message
matching one of patterns is received and handled, we put a yield in
front of the call to avoid blocking other processes.

Linked Processes

When a process finishes or exits, it automatically sends a message to any
processes which link to it. Linking is done by passing a pid to
Er.link. The sent message is of the form:
{ Signal: Er.Exit, From: exiting_pid, Reason: reason }

The Reason value comes either from the exiting process calling
Er.exit(reason), or just throw'ing the reason as an
exception. If the linking process does not handle this message, it will exit
itself, sending exit messages to its own linked processes. This allows for
simple process chaining and failure handling.

Message Multicast

Er.js processes can also register to receive messages sent to a given name,
using Er.register(name). Registered names can be passed as the
first argument to Er.send. Multiple processes can register for the
same name, and they will all receive a message sent to that name, allowing for
simple multi-casting.

Concurrent AJAX with Er.Ajax

XmlHttpRequest, AJAX and JSON integrate nicely with the process and
message-passing model, allowing processes to avoid asynchronous JavaScript and
callbacks.

Instead, using message-passing and concurrency, Er.js makes network access
transparent, without blocking other processes or interactivity:
var txt = yield Er.Ajax.get("http://beatniksf.com/erjs/index.html");
alert("Fetched Content: " + txt);

Under the covers, this is accomplished using Er.Ajax.start,
which handles asynchronous XmlHttpRequest internals and uses
Er.send to tell the current process about download progress and
completion.

Er.Ajax.get and others (post, json,
etc) are implemented by yielding execution until the final message from
Er.Ajax.start is received. If the message indicates success, the
response text is returned to the caller, otherwise the failure message is
thrown:
function myGet(url) {
Er.Ajax.start(url);
yield Er.receive({ Url: url, Success: true, Text: String, _:_ },
function(msg) { return msg.Text; },
{ Url: url, Success: false, Text: String, _:_ },
function(msg) { throw msg; });
}

Er.DOM Event Handling

As with remote resources, Er.js can concurrently listen for DOM Events, and
once received insert them into the listening process's message queue. The
following demonstrates a simple wrapper, Er.DOM.Receive, which
subscribes to a named event on a DOM element and calls Er.receive
to await its delivery:
var event = yield Er.DOM.receive(document, "click");

Note: The best approach to handling DOM manipulation and eventing with Er.js
is still under investigation. For instance, document above might
alternately refer to an an element's id or multiple elements using a CSS
selector.

Future Work

Er.js will wrap certain long-running asynchronous JavaScript calls in
synchronous yielding wrappers so that processes can avoid convoluted
asynchronous code.

JSON-based Remote Procere Calls
Like Erlang itself, Er.js will enable easy interaction with concurrent processes
running on remote nodes. Using JSON and XML, messages can be sent to and
received from remote servers using the same API as locally running concurrent
processes:

var rpc = Er.spawn("http://www.beatniksoftware.com/echo");
...
Er.send(rpc, { Echo: "This is the echo payload" });
yield Er.receive({ EchoResponse: String },
function (msg) {
alert("Got Echo response: " + msg.EchoResponse);
});

Ⅳ 兩個實時交互比較多的系統，使用什麼協議做連接

題主可以看下zeromq框架，zmq包含了PULL和PUSH模式，採用非同步io通信方式並對上層屏蔽通信細節，參考資料： 傳送門

Ⅳ android前後台交互用到什麼協議

如果後台Http 可以用 HttpClient把 模擬 get/post提交

Ⅵ 3. LTE基站與核心網網元之間的信令交互為什麼採用SCTP協議來承載能否使用TCP或UDP協議來承載為什麼

同學你好，我是馬老師，下課來我辦公室一趟

Ⅶ lte中nas協議用於哪些信令交互

1、LTE中，SRB（signalling radio bearers—信令無線承載）作為一種特殊的無線承載（RB），其僅僅用來傳輸RRC和NAS消息，在協議.331中，定義了SRBs的傳輸信道：——SRB0用來傳輸RRC消息，在邏輯信道CCCH上傳輸——SRB1用來傳輸RRC消息（也許會包含piggybacked NAS消息），在SRB2承載的建立之前，比SRB2具有更高的優先順序。在邏輯信道DCCH上傳輸.——SRB2用來傳輸NAS消息，比SRB1具有更低的優先順序，並且總是在安全模式激活之後才配置SRB2。在邏輯信道DCCH上傳輸.下行piggybacked NAS消息僅僅使用在附著過程（例如連接成功/失敗）：承載的建立/修改/釋放。上行的piggybacked NAS消息在連接建立期間初始化NAS消息（也就是發起連接建立，MSG3）註：通過SRB2傳輸NAS消息也是被包含在RRC消息中的，但是這些NAS消息不包括任何RRC協議控制信息，只是在RRC消息傳輸的時候包含在RRC中，相當於此時RRC是一個載體的形式。一旦安全模式被激活，所有SRB1和SRB2的RRC消息（包括某些NAS或者3GPP消息），都會通過PDCP來進行完整性保護和加密，NAS只是單獨對NAS消息進行完整性保護和加密。換句話說，LTE存在的2層加密和保護：NAS只進行控制信令的加密工作，而PDCP同時進行控制平面和數據平面的完保和加密工作，SRB2的使用還要注意聯系一點就是：它是建立在專用承載基礎上的，使用DCCH邏輯信道註：在LTE裡面，SRB有三個，SRB0對應的是CCCH，在信令建立過程中不需要建立，對SRB1，SRB2，會在RRCconnectionsetup和RRCReconfig消息裡面進行配置rrcConnectionReqest是在SRB0上傳輸的， SRB0一直存在， 用來傳輸映射到CCCH 的RRC信令。UE收到NodeB的rrcConnectionSetup信令後，UE和NodeB之間的SRB1就建立起來了。eNodeB向UE發送RRCConnectionReconfiguration 消息，建立SRB2和DRB對DRB，確實在RRC協議裡面對應的邏輯信道是5個比特，但去看DRB的取值它是從3到11的，總共8個，這里的邏輯信道的ID只是比特位上的對應，在MAC層標識DRB，兩個ID的數值有可能相同，也可以不同。所以最多總共有3個SRB，8個DRB。2、在無線承載中有兩種，一種是數據承載稱為DRB，一種是信令承載稱為SRB。SRB一共有3中分別為SRB0、SRB1、SRB2。SRB0其實對應的是公共控制信道，是不屬於某個用戶的。是在小區建了好就會建了的。後兩種信令承載是對應專用控制信道的，是對應用戶的。SRB1在RRC建立過程完（rrc connection setup）。SRB2和DRB在E-RAB指派階段完成（rrc connection reconfigurationlte中nas協議用於哪些信令交互

Ⅷ 在客戶端與web服務交互中，消息是如何封裝的，採用的是什麼協議

可以這樣理解

手機的 客戶端 需要的一些數據需要從騰訊的 伺服器上下載
也可以看成上傳文件 下載文件
重在自己把意思理解到就行 代碼 還有格式

Ⅸ 請教安卓客戶端與伺服器之間交互的協議

協議肯定是根據需求來定的，比如登陸，client需要給server傳哪些數據，而server在各種情況下，返回什麼樣的數據。這個別人肯定幫不上你的。你自己要弄懂。還有交互方式 等等。 查看更多答案>>

Ⅹ 什麼是互動式協議

互動式協議是指主機之間對多種協議進行交互的一種協議。主機之間要成功地專進行通信，屬多種協議必須進行交互。這些協議是在每台主機和網路設備載入的軟體和硬體中實現的。
協議之間的交互被稱為協議棧。協議棧以分層結構表示協議，每個上層協議都依賴於下層協議提供的服務。