数据接口签名生成方式

加签原理

1. 获取接口传参的所有请求参数，剔除 sign 字段；
2. 按照请求参数的第一个字符键值 ASCII 码递增排序（字母升序排序），如果遇到相同字符则按照第二个字符的键值 ASCII 码递增排序，以此类推；
3. 将排序后的参数与其对应值，组合成 参数=参数值 的格式，并且把这些参数用 & 字符连接起来，此时生成的字符串为待签名字符串。
4. 使用应用创建时生成的私钥对待签名字符串进行私钥签名，生成sign。
5. 服务端通过应用的公钥验证sign内容是否合法。

操作指导

1. 请求参数

示例

accessToken=t7n18z0bzp&beginTime=tfw12utz1u&endTime=48yrrznjfb&namespace=xxydsjlb_jbxxb&page=98&size=21&ssjg=tqj4ajef0g&ssry=vmigycbzmt&xtsbh=s99osfw62e

参数说明

2. 应用私钥

开发者需通过应用私钥加密，获取方式为:开发平台-开发者后台-应用编辑-查看密钥

3. 字符集

RSA 签名支持字符集 UTF-8

4. 签名方式

使用RSA通过私钥加密

5. 签名生成步骤

1. 获得请求参数

beginTime=tfw12utz1u&endTime=48yrrznjfb&page=98&size=21&ssjg=tqj4ajef0g&ssry=vmigycbzmt&xtsbh=s99osfw62e=

2. 添加accessToken和namespace

beginTime=tfw12utz1u&endTime=48yrrznjfb&page=98&size=21&ssjg=tqj4ajef0g&ssry=vmigycbzmt&xtsbh=s99osfw62e=&namespace=xxydsjlb_jbxxb&accessToken=15e309ab-7484-4da4-87c4-a0ee5d37bece732217883533

3. 排序并去除空格

accessToken=15e309ab-7484-4da4-87c4-a0ee5d37bece732217883533&beginTime=tfw12utz1u&endTime=48yrrznjfb&namespace=xxydsjlb_jbxxb&page=98&size=21&ssjg=tqj4ajef0g&ssry=vmigycbzmt&xtsbh=s99osfw62e

4. 通过应用私钥加密获得签名

JLtBRw2ErzQ/LA5DUw6BaiHvu2lGWLKtwYpLa1pnog0VamCRI/b2/gfM2iBV3qe9DtnxdlBrG2XLQUCAzNIWvWh6SZBvTohRtD58owpYZUX5zwaTri/Uy8nFGESL+j5eGjGTxM8k2pCFQJS/Nl5gmHZyDYhBD8axJMKaySm0B09enykWBE+XwqucH+4J6nr0HTUQxI2M+k9Z+LTeDKXACgCmkZOYYw2xQ8BYR0iiZ5DGytFvyYDkWN7VCa4c2EfQR61t79hMFHxQkNnrotnh1HlsLKQhBFnjiZulcj/fhShNVpmUWrTx2px71AZ9onIivF65W/RMoObBDLf56/9XnA==

5. urlencode

JLtBRw2ErzQ%2FLA5DUw6BaiHvu2lGWLKtwYpLa1pnog0VamCRI%2Fb2%2FgfM2iBV3qe9DtnxdlBrG2XLQUCAzNIWvWh6SZBvTohRtD58owpYZUX5zwaTri%2FUy8nFGESL%2Bj5eGjGTxM8k2pCFQJS%2FNl5gmHZyDYhBD8axJMKaySm0B09enykWBE%2BXwqucH%2B4J6nr0HTUQxI2M%2Bk9Z%2BLTeDKXACgCmkZOYYw2xQ8BYR0iiZ5DGytFvyYDkWN7VCa4c2EfQR61t79hMFHxQkNnrotnh1HlsLKQhBFnjiZulcj%2FfhShNVpmUWrTx2px71AZ9onIivF65W%2FRMoObBDLf56%2F9XnA%3D%3D

6. 拼接到请求参数

https://tianyin-dw-test-gateway.iclass.cn/apis-dbus/theme/get/xxydsjlb_jbxxb/?accessToken=15e309ab-7484-4da4-87c4-a0ee5d37bece732217883533&sign=JLtBRw2ErzQ%2FLA5DUw6BaiHvu2lGWLKtwYpLa1pnog0VamCRI%2Fb2%2FgfM2iBV3qe9DtnxdlBrG2XLQUCAzNIWvWh6SZBvTohRtD58owpYZUX5zwaTri%2FUy8nFGESL%2Bj5eGjGTxM8k2pCFQJS%2FNl5gmHZyDYhBD8axJMKaySm0B09enykWBE%2BXwqucH%2B4J6nr0HTUQxI2M%2Bk9Z%2BLTeDKXACgCmkZOYYw2xQ8BYR0iiZ5DGytFvyYDkWN7VCa4c2EfQR61t79hMFHxQkNnrotnh1HlsLKQhBFnjiZulcj%2FfhShNVpmUWrTx2px71AZ9onIivF65W%2FRMoObBDLf56%2F9XnA%3D%3D&beginTime=tfw12utz1u&endTime=48yrrznjfb&page=98&size=21&ssjg=tqj4ajef0g&ssry=vmigycbzmt&xtsbh=s99osfw62e=

代码示例

    public static void main(String[] args) {
        String accessToken = accessToken();
        Map<String,Object> params=new HashMap<>();
        params.put("page",1);
        params.put("size",10);
        params.put("accessToken",accessToken);
        params.put("namespace","DW_xkxx_jzgjbsj");
        sign(params);
    }

    public static String sign( Map<String,Object> params) {
        String result =getMapStr(params);
        RSA rsa = new RSA(private_key, public_key);
        byte[] encrypt = rsa.encrypt(result, KeyType.PrivateKey);
        String sign = URLEncoder.encode(Base64Encoder.encode(encrypt));
        System.out.println("获取sign:" + sign);
        return sign;
    }

    private static String getMapStr(Map<String, Object> paramsMap) {
        paramsMap.remove("sign");
        List<String> params = new ArrayList<String>();
        for (Map.Entry<String, Object> entry : paramsMap.entrySet()) {
            params.add(entry.getKey() + "=" + entry.getValue() );
        }
        Collections.sort(params);
        return CollUtil.join(params, "&");
    }