blocks|key|1529172|text|我建议阅读/观看/下载Start+Developing+Web+Applications+on+Erlang|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1529173|entityMap|0|LINK|mutability|MUTABLE|url|http://beebole.com/en/blog/erlang/tutorial-web-application-erlang/^0|B|17|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

I suggest reading/watching/downloading <a href="http://beebole.com/en/blog/erlang/tutorial-web-application-erlang/" rel="nofollow noreferrer">Start Developing Web Applications on Erlang</a>

blocks|key|1529208|text|Erlang实际上只包含两个函数，这两个函数(如果您已经下载了mochijson2+)可以直接从Erlang中使用，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1529209|erl+-pa+path/to/mochiweb/ebin
...
1>+mochijson2:decode(<<"[1,2,3]">>).
[1,2,3]
2>+iolist_to_binary(mochijson2:encode([1,2,3])).
<<"[1,2,3]">>|code-block|syntax|javascript|1529210|mochiweb/src/mochijson2.erl底部有一些测试用例，它们可能有助于理解JSON术语和Erlang术语之间的映射。|1529211|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

The mochijson2 API essentially consists of just two functions, which (if you've downloaded mochiweb) can be used directly from the Erlang shell as follows:

<pre><code>erl -pa path/to/mochiweb/ebin
...
1&gt; mochijson2:decode(&lt;&lt;"[1,2,3]"&gt;&gt;).
[1,2,3]
2&gt; iolist_to_binary(mochijson2:encode([1,2,3])).
&lt;&lt;"[1,2,3]"&gt;&gt;
</code></pre>

There are some test cases at the bottom of mochiweb/src/mochijson2.erl that might also be helpful in understanding the mapping between JSON terms and Erlang terms.

blocks|key|1529251|text|是的，我不得不花很多时间在源代码中弄清楚到底是怎么回事。实际上，这描述了我使用Erlang的很多经验。这使我能够生成所需的JSON。这里有一个简单的例子。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1529252|ERL++::+{struct,+[{strKey,+<<"strVal">>},+{intKey,+10},+{arrayKey,+[1,+2,+3]}]}
JSON+::+{strKey:"strVal",+intKey:10,+arrayKey:[1,+2,+3]}|code-block|syntax|javascript|1529253|在该示例中，您可以看到如何创建对象(+mochijson2希望您将其称为结构)、字符串、整数和数组。祝好运!|1529254|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Yeah, I had to spend a bunch of time in the source code to figure out what was going on. Actually, that describes a lot of my experience with Erlang. This has gotten me by, generating the JSON I need. Here's a quick example.

<pre><code>ERL :: {struct, [{strKey, &lt;&lt;"strVal"&gt;&gt;}, {intKey, 10}, {arrayKey, [1, 2, 3]}]}
JSON :: {strKey:"strVal", intKey:10, arrayKey:[1, 2, 3]}
</code></pre>

So in that example you can see how to make objects (which mochijson2 wants you to call structs), strings, integers and arrays. Good luck!

blocks|key|1314091|text|除了@rik.the.vik的注释之外，还有等效的erlang命令：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1314092|erl+-pa+path/to/mochiweb/ebin
...
iolist_to_binary(mochijson2:encode({struct,+[{strKey,+<<"strVal">>},+{intKey,+10},+{arrayKey,+[1,+2,+3]}]})).
mochijson2:decode(<<"{\"strKey\":\"strVal\",+\"intKey\":10,+\"arrayKey\":[1,+2,+3]}">>).|code-block|syntax|javascript|1314093|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Here are the equivalent erlang commands in addition to @rik.the.vik's comment:

<pre><code>erl -pa path/to/mochiweb/ebin
...
iolist_to_binary(mochijson2:encode({struct, [{strKey, &lt;&lt;"strVal"&gt;&gt;}, {intKey, 10}, {arrayKey, [1, 2, 3]}]})).
mochijson2:decode(&lt;&lt;"{\"strKey\":\"strVal\", \"intKey\":10, \"arrayKey\":[1, 2, 3]}"&gt;&gt;).
</code></pre>

I'm a two-week old infant with regards to Erlang and Mochiweb. Earlier I had a system running on PHP and soon I realised that it wasn't going to be able to handle the kind of load I was expecting. So I decided to switch the backend to a Mochiweb based server.
Right now I need to know how to implement JSON with Mochiweb. I'm fully aware of the existense of mochijson2 library, but being a beginner, I can't get around to figuring out how to use it. Could someone point me to some place where I can find examples of using this library or any other json library in erlang?

mochijson2 examples!

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对于Erlang和Mochiweb来说，我是一个两周大的婴儿。早些时候，我有一个运行在PHP上的系统，很快我意识到它将无法处理我所期望的那种负载。因此，我决定将后端切换到基于Mochiweb的服务器。现在我需要知道如何使用Mochiweb实现JSON。我完全知道mochijson2库的存在，但作为一个初学者，我不知道如...

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