以太坊区块链浏览器开发，包括合约信息及链上信息展示，web3j的对应API。

更多区块链技术与应用分类：

区块链应用    区块链开发

以太坊 | Fabric | BCOS | 密码技术 | 共识算法 | 比特币 | 其他链

通证经济 |  传统金融场景 | 去中心化金融 | 防伪溯源 | 数据共享 | 可信存证

一.效果

二. 合约信息

1.当前用户总数：

$scope.userCount = mxxData.residentCount.call().toString();

2.已分配Token数：

$scope.assingedQuark = mxxQuarkRule.alreadyAssignedAmount.call().toFixed(4);

3.下次分配Token块：

$scope.nextAssingedBlock = mxxQuarkRule.nextAssignQuarkBlock.call().toString() + "(块)";

4. 最近交易块

function updateTXList() {var currentTXnumber = web3.eth.blockNumber;$scope.txNumber = currentTXnumber;$scope.recenttransactions = [];for (var i=0; i < 10 && currentTXnumber - i >= 0; i++) { //显示十条交易记录$scope.recenttransactions.push(web3.eth.getTransactionFromBlock(currentTXnumber - i));}
}

5.最近交易

三. 链信息(ChainInfo)

1.最新块

$scope.blockNum = web3.eth.blockNumber;var blockNewest = web3.eth.getBlock($scope.blockNum);

2.难度

blockNewest.difficulty;

3.totalDifficultyDividedByDifficulty

$scope.totalDifficultyDividedByDifficulty = $scope.totalDifficulty.dividedBy($scope.difficulty);

4.AltsheetsCoefficient

$scope.AltsheetsCoefficient = $scope.totalDifficultyDividedByDifficulty.dividedBy($scope.blockNum);

5.gasLimit

$scope.gasLimit = blockNewest.gasLimit;

6.格式化的time

var newDate = new Date();newDate.setTime(blockNewest.timestamp*1000);$scope.time = newDate.toUTCString();

7.区块链运行时间

$scope.secondsSinceBlock1 = blockNewest.timestamp - 1438226773;$scope.daysSinceBlock1 = ($scope.secondsSinceBlock1 / 86400).toFixed(2);

8.已出块数

var blockBefore = web3.eth.getBlock($scope.blockNum - 1);if(blockBefore!==undefined){$scope.blocktime = blockNewest.timestamp - blockBefore.timestamp;}

9.最后100块评价出块时间

$scope.range1=100;range = $scope.range1;//从当前往前数100var blockPast = web3.eth.getBlock(Math.max($scope.blockNum - range,0));if(blockBefore!==undefined){$scope.blocktimeAverage1 = ((blockNewest.timestamp - blockPast.timestamp)/range).toFixed(2);}

10.整个链出块时间

range = $scope.blockNum;var blockPast = web3.eth.getBlock(1);if(blockBefore!==undefined){$scope.blocktimeAverageAll = ((blockNewest.timestamp - blockPast.timestamp)/range).toFixed(2);}

11.是否连接(True)

$scope.isConnected = web3.isConnected();

12.API-Client Version：0.12.2 - Geth/v1.8.4-stable/linux-amd64/go1.10

$scope.versionApi = web3.version.api;$scope.versionClient = web3.version.client;($scope.versionNetwork = web3.version.network;$scope.versionCurrency = web3.version.ethereum;)