API 响应处理

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调用第三方 API 时，使用 JSONMap 解析嵌套 JSON 响应。

基本用法

String response = httpClient.get("https://api.example.com/user/info");
JSONMap data = new JSONMap(response);

// 深层取值
Integer code = data.getInt("code");
String userName = data.getStr("data.user.name");
String avatar = data.getStr("data.user.profile.avatar", "default.png");
List<String> roles = data.getList("data.user.roles", String.class);

案例

微信 API

String response = wechatApi.getUserInfo(openid);
JSONMap result = new JSONMap(response);

if (result.getInt("errcode", 0) != 0) {
    throw new BusinessException(result.getStr("errmsg"));
}

String nickname = result.getStr("nickname");
String headimgurl = result.getStr("headimgurl");
Integer sex = result.getInt("sex");

支付回调

@PostMapping("/alipay/notify")
public String notify(@RequestBody String notifyData) {
    JSONMap data = new JSONMap(notifyData);
    String outTradeNo = data.getStr("out_trade_no");
    String tradeStatus = data.getStr("trade_status");
    Double totalAmount = data.getDouble("total_amount");
    orderService.updateStatus(outTradeNo, tradeStatus, totalAmount);
    return "success";
}

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