Java转义JSON字符串？ [英] Java escape JSON String?

问题描述

我有以下发送到NodeJS服务器的JSON字符串：

I have the following JSON string that i am sending to a NodeJS server:

String string = "{\"id\":\"" + userID + "\",\"type\":\"" + methoden + "\",\"msg\":\"" + msget + "\", \"name\":\"" + namnet + "\", \"channel\":\"" + activeChatChannel + "\", \"visitorNick\":\"\", \"agentID\":\" " + agentID + "\"}";

PrintWriter pw = new PrintWriter(new OutputStreamWriter(os, "utf-8"));
pw.println(string);

当字符串 msget 包含时，问题就出现了字符和'

The problem becomes when the string msget contains the character " and '

在NodeJS服务器上我正在解析这样的JSON：

On the NodeJS server i am parsing the JSON like this:

var obj = JSON.parse(message);

我有什么想法可以设置发送所有字符而不会出现问题？

Any ideas how i can manage to send all characters without problems?

推荐答案

我会用你的库为你创建你的JSON String 。有些选项是：

I would use a library to create your JSON String for you. Some options are:

• GSON


• Crockford的lib

• GSON
• Crockford's lib

这将使处理转义变得更加容易。一个例子（使用 org.json ）将是：

This will make dealing with escaping much easier. An example (using org.json) would be:

JSONObject obj = new JSONObject();

obj.put("id", userID);
obj.put("type", methoden);
obj.put("msg", msget);

// etc.

final String json = obj.toString(); // <-- JSON string

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