handling (usage documentation) 故障处理 但如果我们想更加灵活，给用户另一个选择，该怎么办？一个名为 warn_only 的设置（或着说 环境变量 ，通常缩写为 env var ）可以把退出换为警告，以 提供更灵活的错误处理。 让我们把这个设置丢到 test 函数中，然后注意这个 local 调用的结果： from __future__ import with_statement imported: from fabric.api import env, run env.hosts = ['host1', 'host2'] def mytask(): run('ls /var/www') Such a fabfile, run simply as fab mytask, will run mytask on host1 followed by host2. Since api import env, run def set_hosts(): env.hosts = ['host1', 'host2'] def mytask(): run('ls /var/www') When run as fab set_hosts mytask, set_hosts is a “local” task – its own host list is empty –

handling (usage documentation) 故障处理 但如果我们想更加灵活，给用户另一个选择，该怎么办？一个名为 warn_only 的设置（或着说 环境变量 ，通常缩写为 env var ）可以把退出换为警告，以 提供更灵活的错误处理。 让我们把这个设置丢到 test 函数中，然后注意这个 local 调用的结果： from __future__ import with_statement imported: from fabric.api import env, run env.hosts = ['host1', 'host2'] def mytask(): run('ls /var/www') Such a fabfile, run simply as fab mytask, will run mytask on host1 followed by host2. Since api import env, run def set_hosts(): env.hosts = ['host1', 'host2'] def mytask(): run('ls /var/www') When run as fab set_hosts mytask, set_hosts is a “local” task – its own host list is empty –

web3调用示例如下（可参看systemcontract/tool.js）： var instance=getAction("NodeAction"); var func = "registerNode(string,string,string,string)"; var params = [node.id,node.name,node.agency,node.caHash]; var receipt = web3sync.sen web3调用示例如下（可参看systemcontract/tool.js）： var instance=getAction("CAAction"); var func = "add(string,string,string)"; var params = [ca.serial,ca.pubkey,ca.name]; var receipt = web3sync.sendRawTransaction(config 接口、交易数据 无 无 web3调用示例如下（可参看systemcontract/deploy.js）： var GroupReicpt= await web3sync.rawDeploy(config.account, config.privKey, "Group"); var Group=web3.eth.contract(getAbi("Group")).at(GroupReicpt

specified by the app dev. var channel = fabric_client.newChannel('mychannel'); var peer = fabric_client.newPeer('grpc://localhost:7051'); channel.addPeer(peer); var member_user = null; var store_path = path.join(__dirname join(__dirname, 'hfc-key-store'); console.log('Store path:'+store_path); var tx_id = null; This is the chunk where we construct our query: // queryCar chaincode function - requires 1 argument, ex: args: function - requires 2 args , ex: args: ['CAR10', 'Barry'], // must send the proposal to endorsing peers var request = { //targets: let default to the peer assigned to the client chaincodeId: 'fabcar', fcn:

tty: true stdin_open: true environment: - GOPATH=/opt/gopath - CORE_VM_ENDPOINT=unix:///host/var/run/docker.sock - CORE_LOGGING_LEVEL=DEBUG #- CORE_LOGGING_LEVEL=INFO Crypto Generator We will volumes: - /var/hyperledger/peer0:/var/hyperledger/production For the CouchDB container, you may add the following two lines in the CouchDB container specification: volumes: - /var/hyperledger/co endorsing chaincode: rpc error: code = 2 desc = Error installing chaincode code mycc:1.0(chaincode /var/hyperledger/production/chaincodes/mycc.1.0 exits) You likely have chaincode images (e.g. dev-peer1

cs Documentation, Release master (continued from previous page) - CORE_VM_ENDPOINT=unix:///host/var/run/docker.sock - CORE_LOGGING_LEVEL=DEBUG #- CORE_LOGGING_LEVEL=INFO 3.1.3 Crypto Generator We will volumes: - /var/hyperledger/peer0:/var/hyperledger/production For the CouchDB container, you may add the following two lines in the CouchDB container specification: volumes: - /var/hyperledger/co endorsing chaincode: rpc error: code = 2 desc = Error installing ˓→chaincode code mycc:1.0(chaincode /var/hyperledger/production/chaincodes/mycc.1. ˓→0 exits) You likely have chaincode images (e.g. dev-peer1

specified by the app dev. var channel = fabric_client.newChannel('mychannel'); var peer = fabric_client.newPeer('grpc://localhost:7051'); channel.addPeer(peer); var member_user = null; var store_path = path.join(__dirname join(__dirname, 'hfc-key-store'); console.log('Store path:'+store_path); var tx_id = null; This is the chunk where we construct our query: // queryCar chaincode function - requires 1 argument, ex: args: function - requires 2 args , ex: args: ['CAR10', 'Barry'], // must send the proposal to endorsing peers var request = { //targets: let default to the peer assigned to the client chaincodeId: 'fabcar', fcn:

specified by the app dev. var channel = fabric_client.newChannel('mychannel'); var peer = fabric_client.newPeer('grpc://localhost:7051'); channel.addPeer(peer); var member_user = null; var store_path = path.join(__dirname join(__dirname, 'hfc-key-store'); console.log('Store path:'+store_path); var tx_id = null; This is the chunk where we construct our query: // queryCar chaincode function - requires 1 argument, ex: args: function - requires 2 args , ex: args: ['CAR10', 'Barry'], // must send the proposal to endorsing peers var request = { //targets: let default to the peer assigned to the client chaincodeId: 'fabcar', fcn:

specified by the app dev. var channel = fabric_client.newChannel('mychannel'); var peer = fabric_client.newPeer('grpc://localhost:7051'); channel.addPeer(peer); var member_user = null; var store_path = path.join(__dirname join(__dirname, 'hfc-key-store'); console.log('Store path:'+store_path); var tx_id = null; This is the chunk where we construct our query: // queryCar chaincode function - requires 1 argument, ex: args: function - requires 2 args , ex: args: ['CAR10', 'Barry'], // must send the proposal to endorsing peers var request = { //targets: let default to the peer assigned to the client chaincodeId: 'fabcar', fcn:

61967ad- 42f57faac8360472e47cbbbf3940e81bba83439702d085878d148089a1b213ca/ json": dial unix /host/var/run/docker.sock: connect: no such file or directory Chaincode installation on peer0.org1 has failed endorsing chaincode: rpc error: code = 2 desc = Error installing chaincode code mycc:1.0(chaincode /var/hyperledger/production/chaincodes/mycc.1.0 exits) You likely have chaincode images (e.g. dev-peer1 *SimpleChaincode) readMarble(stub shim.ChaincodeStubInterface, args []string) pb.Response { var name, jsonResp string var err error if len(args) != 1 { return shim.Error("Incorrect number of