Question

字符串替换不起作用

String jsonresponseString ="��  ÿ0{"sid":"QtRm47A_2COfPAO-AANH","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":60000}"

我试过这段代码

String responseString1 = jsonresponseString.replace("�� ÿ0", "");

我想要这样的输出

{"sid":"v3h9kTn3woDQEijKAANS","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":60000}

Answer 1

第一行

String responseString =  �� ÿ0{"sid":"v3h9kTn3woDQEijKAANS","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":60000}

不是有效的java代码。你有没有从某个程序的输出中复制粘贴它？它应该像

String responseString =  "{\"sid\":\"v3h9kTn3woDQEijKAANS\", ...}"

我建议你仔细检查生成responseString的内容。

Answer 2

试试这段代码：

String printjson(String str) {
    // \{\s*\".*\}$|^\[\n?\{\s*\".*\}\n?\]$~s
    Pattern rulePattern = Pattern.compile("\\{\\s*\\\".*\\}$|^\\[\\n?\\{\\s*\\\".*\\}\\n?\\]$~s");
    Matcher a = rulePattern.matcher(str);
    if (a.find()) {
        str = a.group();
    }
    return str;
}


System.out.println(printJson("��  ÿ0{"sid":"QtRm47A_2COfPAO-AANH","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":60000}")

从Android中的JSON响应字符串替换字符串

2 个答案: