瑞波JAVA调用(离线签名)

具体注意点请参考:https://blog.csdn.net/liu1765686161/article/details/82492937

1.需要安装两个jar包 https://github.com/ripple-unmaintained/ripple-lib-java 中

ripple-bouncycastle 和 ripple-core .

  1. 可以编译后放入maven仓库,然后引用

例如:

com.ripple ripple-bouncycastle 1.0.0 com.ripple ripple-core 1.0.0 3,直接上代码

package com.tn.set.service.coin;

import java.io.IOException;
import java.math.BigDecimal;
import java.text.MessageFormat;
import java.util.*;

import org.apache.commons.codec.binary.Base64;
import org.slf4j.Logger;
import org.springframework.stereotype.Service;
import org.springframework.util.StringUtils;

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONArray;
import com.alibaba.fastjson.JSONObject;
import com.ripple.core.coretypes.AccountID;
import com.ripple.core.coretypes.Amount;
import com.ripple.core.coretypes.uint.UInt32;
import com.ripple.core.types.known.tx.signed.SignedTransaction;
import com.ripple.core.types.known.tx.txns.Payment;
import com.tn.base.Log;
import com.tn.util.BigDecimalUtil;
import com.tn.util.DateUtil;
import com.tn.util.HttpUtil;

/**

  • XRP操作

  • @author xhl

  • @create 2017/10/27
    **/
    @Service
    public class CopyOfCoinXrpService {

    private String getUrl = “https://data.ripple.com”;
    private String postUrl = “https://s1.ripple.com:51234”;
    private String address = “rani9PZFVtQtAjVsvQY7AGc7xZVFLjPc1Z”;
    private String password = “”;

    private static final String gasFee = “100”;
    private static final String COIN_XRP = “XRP”;

    private Logger log = Log.get();

    private final static String RESULT = “result”;
    private final static String SUCCESS = “success”;
    private final static String TES_SUCCESS = “tesSUCCESS”;

    private final static String METHOD_GET_TRANSACTION = “/v2/accounts/{0}/transactions”;
    private final static String METHOD_GET_BALANCE = “/v2/accounts/{0}/balances”;

    private final static String METHOD_POST_INDEX = “ledger_current”;
    private final static String METHOD_POST_ACCOUNT_INFO = “account_info”;
    private final static String METHOD_POST_SUBMIT = “submit”;

    public static void main(String args[]) throws Exception{
    CopyOfCoinXrpService XRPUtils = new CopyOfCoinXrpService();
    // System.out.println(XRPUtils.send(“rG2pkYL2q9jDnEA7xraKH7gXLXo17Tj4tX”, 0.1));
    // System.out.println(XRPUtils.parseTransaction(“0”));
    System.out.println(XRPUtils.sign(“rG2pkYL2q9jDnEA7xraKH7gXLXo17Tj4tX”,1000.0));
    }

    public String getAddress(){
    return address;
    }

    /**

    • 发送交易
    • @param address
    • @param value
    • @return
      */
      public String send(String toAddress,double value){
      String txBlob = this.sign(toAddress, value);
      if (StringUtils.isEmpty(txBlob)) {
      log.error(“签名失败:{}”,toAddress);
      return null;
      }
      HashMap params = new HashMap();
      params.put(“tx_blob”, txBlob);
      //签名
      JSONObject json = doRequest(METHOD_POST_SUBMIT, params);
      if (!isError(json)) {
      JSONObject result = json.getJSONObject(RESULT);
      if (result != null) {
      if (TES_SUCCESS.equals(result.getString(“engine_result”))) {
      String hash = result.getJSONObject(“tx_json”).getString(“hash”);
      if (!StringUtils.isEmpty(hash)) {
      log.info(“转账成功:toAddress:{},value:{},hash:{}”,toAddress,value,hash);
      return hash;
      }else {
      log.error(“转账失败:toAddress:{},value:{},hash:{}”,toAddress,value,hash);
      }
      }
      }
      }
      return null;
      }

    /**

    • 签名
    • @param address
    • @param value
    • @return tx_blob
      */
      public String sign(String toAddress,Double value){
      value = BigDecimalUtil.mul(value, 1000000);
      Integer vInteger = BigDecimal.valueOf(value).intValue();
      Map map = getAccountSequenceAndLedgerCurrentIndex();
      Payment payment = new Payment();
      payment.as(AccountID.Account, address);
      payment.as(AccountID.Destination, toAddress);
      payment.as(UInt32.DestinationTag, “1”);
      payment.as(Amount.Amount, vInteger.toString());
      payment.as(UInt32.Sequence, map.get(“accountSequence”));
      payment.as(UInt32.LastLedgerSequence, map.get(“ledgerCurrentIndex”)+4);
      payment.as(Amount.Fee, gasFee);
      SignedTransaction signed = payment.sign(password);
      if (signed != null) {
      return signed.tx_blob;
      }
      return null;
      }

    public Map getAccountSequenceAndLedgerCurrentIndex(){
    HashMap params = new HashMap();
    params.put(“account”, address);
    params.put(“strict”, “true”);
    params.put(“ledger_index”, “current”);
    params.put(“queue”, “true”);
    JSONObject re = doRequest(METHOD_POST_ACCOUNT_INFO,params);
    if (re != null) {
    JSONObject result = re.getJSONObject(“result”);
    if (SUCCESS.equals(result.getString(“status”))) {
    Map map = new HashMap();
    map.put(“accountSequence”, result.getJSONObject(“account_data”).getString(“Sequence”));
    map.put(“ledgerCurrentIndex”, result.getString(“ledger_current_index”));
    return map;
    }
    }
    return null;
    }

    /**

    • 获取用户交易序列号
    • @return
      */
      public long getAccountSequence(){
      HashMap params = new HashMap();
      params.put(“account”, address);
      params.put(“strict”, “true”);
      params.put(“ledger_index”, “current”);
      params.put(“queue”, “true”);
      JSONObject re = doRequest(METHOD_POST_ACCOUNT_INFO,params);
      if (re != null) {
      JSONObject result = re.getJSONObject(“result”);
      if (SUCCESS.equals(result.getString(“status”))) {
      return result.getJSONObject(“account_data”).getLongValue(“Sequence”);
      }
      }
      return 0L;
      }

    /**

    • 获取最新序列
    • @return
      */
      public long getLedgerIndex(){
      JSONObject re = doRequest(METHOD_POST_INDEX);
      if (re != null) {
      JSONObject result = re.getJSONObject(“result”);
      if (SUCCESS.equals(result.getString(“status”))) {
      return result.getLongValue(“ledger_current_index”);
      }
      }
      return 0L;
      }

    /**

    • XRP查询余额
    • @return
      */
      public double getBalance(){
      HashMap params = new HashMap();
      params.put(“currency”, COIN_XRP);
      String re = HttpUtil.jsonGet(getUrl + MessageFormat.format(METHOD_GET_BALANCE, address), params);
      log.info(“获取XRP余额:{}”,re);
      if(!StringUtils.isEmpty(re)){
      JSONObject json = JSON.parseObject(re);
      if (SUCCESS.equals(json.getString(RESULT))) {
      JSONArray array = json.getJSONArray(“balances”);
      if (array != null && array.size() > 0) {
      //总余额
      double balance = array.getJSONObject(0).getDoubleValue(“value”);
      if (balance >= 20) {
      //可用余额 xrp会冻结20个币
      return BigDecimalUtil.sub(balance, 20);
      }
      }
      }
      }
      return 0.00;
      }

    public Long parseTransaction(String startTm) {
    HashMap params = new HashMap();
    if (!StringUtils.isEmpty(startTm)) {
    Date d = new Date(BigDecimalUtil.longAdd(Long.parseLong(startTm), 1000L));
    params.put(“start”, DateUtil.dateToString(d, “yyyy-MM-dd’T’HH:mm:ss”));
    }
    params.put(“result”, “tesSUCCESS”);
    params.put(“type”, “Payment”);
    params.put(“limit”, “1”);
    String re = HttpUtil.jsonGet(getUrl + MessageFormat.format(METHOD_GET_TRANSACTION, address), params);
    if(!StringUtils.isEmpty(re)){
    JSONObject json = JSON.parseObject(re);
    if (SUCCESS.equals(json.getString(RESULT))) {
    // marker = json.getString(“marker”);
    JSONArray transactions = json.getJSONArray(“transactions”);
    if (transactions != null && transactions.size() > 0) {
    for (Object object : transactions) {
    JSONObject transaction = (JSONObject)object;
    String hash = transaction.getString(“hash”);
    String dateString = transaction.getString(“date”);
    Date date =DateUtil.getStringToDate(dateString,“yyyy-MM-dd’T’HH:mm:ss”);
    JSONObject tx = transaction.getJSONObject(“tx”);
    String destinationTag = tx.getString(“DestinationTag”);
    if (StringUtils.isEmpty(destinationTag)) {
    log.info(“非用户充值记录”);
    return date.getTime();
    }
    String to = tx.getString(“Destination”);
    if (!address.equals(to)) {
    log.info(“非用户充值记录,地址不一致”);
    return date.getTime();
    }
    //校验用户是否存在
    /UserEntity user = userService.getUserById(Integer.parseInt(destinationTag));
    if (user == null) {
    log.info(“用户不存在:{}”,destinationTag);
    return date.getTime();
    }
    /
    double amount = tx.getDoubleValue(“Amount”);
    if (amount > 0 ) {
    amount = BigDecimalUtil.div(amount, 1000000, 6);
    }else {
    log.error(“交易金额异常:{}”,amount);
    return date.getTime();
    }
    //添加充值记录
    }
    }
    }
    }
    return null;
    }

    private boolean isError(JSONObject json){
    if( json == null || (!StringUtils.isEmpty(json.getString(“error”)) && json.get(“error”) != “null”)){
    return true;
    }
    return false;
    }
    private JSONObject doRequest(String method,Object… params){
    JSONObject param = new JSONObject();
    param.put(“id”,System.currentTimeMillis()+"");
    param.put(“jsonrpc”,“2.0”);
    param.put(“method”,method);
    if(params != null){
    param.put(“params”,params);
    }
    String creb = Base64.encodeBase64String((address+":"+password).getBytes());
    Map headers = new HashMap<>(2);
    headers.put(“Authorization”,"Basic "+creb);
    String resp = “”;
    try{
    resp = HttpUtil.jsonPost(postUrl,headers,param.toJSONString());
    }catch (Exception e){
    log.info(e.getMessage());
    if (e instanceof IOException){
    resp = “{}”;
    }
    }
    log.info(resp);
    return JSON.parseObject(resp);
    }

}
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