fabric 智能合约开发

1.智能合约状态图

2.实现功能,通过背书,签收机制实现任务在各部门流转

3.相关sdk

1. Chaincode接口 {Init,Invoke}方法
2. ChaincodeStubInterface接口

　　　　1.GetTxTimestamp

　　　　2.CreateCompositeKey

　　       3.GetQueryResult

              4.GetHistoryForKey

              5.SetEvent　　

              6.GetStateByPartialCompositeKey

              7.GetFunctionAndParameters

              8.PutState

              9.DelState

              10.GetStateByRange

4.代码架构图

5.开发环境(centos7.4,goland)

6.global.go代码

 1 package global
 2 
 3 import "github.com/hyperledger/fabric/common/flogging"
 4 
 5 const (
 6     PrescriptionBlockchain_State_NewPublish     ="NewPublish"
 7     PrescriptionBlockchain_State_EndrWaitSign   ="EndrWaitSign"
 8     PrescriptionBlockchain_state_EndrSigned     ="EndrSigned"
 9     HospitalNO_DayTime_PrescriptionID_IndexName ="hospitalno~daytime-prescriptionid"
10     PatientID_PrescriptionID_IndexName          ="patientid~prescriptionid"
11     State_PrescriptionID_IndexName              ="state~prescriptionid"
12     PendingReceivePrescriptionDeptID_PrescriptionID_IndexName="pendingreceiveprescriptiondeptid~prescriptionid"
13     ReceivingPrescriptionDeptID_PrescriptionID_IndexName="receivingprescriptiondeptid~prescriptionid"
14     OpenPrescriptionDeptID_PrescriptionID_IndexName="openprescriptiondeptid~prescriptionid"
15 )
16 var(
17     Logger =flogging.MustGetLogger("PrescriptionChaincode")
18 )

View Code

7.prescriptionentity.go代码

 1 package model
 2 
 3 type PrescriptionBlockchain struct {
 4     PrescriptionID string `json:"PrescriptionID"`
 5     HospitalNO string `json:"HospitalNO"`
 6     PatientID string `json:"PatientID"`
 7     GenerationTime string `json:"GenerationTime"`
 8     PrescriptionSummary string `json:"PrescriptionSummary"`
 9     OpenPrescriptionDeptID string `json:"OpenPrescriptionDeptID"`
10     OpenPrescriptionDoctorID string `json:"OpenPrescriptionDoctorID"`
11     PendingReceivePrescriptionDeptID string `json:"PendingReceivePrescriptionDeptID"`
12     PendingReceivePrescriptionWorkID string `json:"PendingReceivePrescriptionWorkID"`
13     ReceivingPrescriptionDeptID string `json:"ReceivingPrescriptionDeptID"`
14     ReceivingPrescriptionWorkID string `json:"ReceivingPrescriptionWorkID"`
15     State string `json:"State"`
16     History []HistoryItem `json:"History"`
17 }
18 type HistoryItem struct {
19     TxId string `json:"TxId"`
20     PrescriptionBlockchain PrescriptionBlockchain `json:"PrescriptionBlockchain"`
21 }
22 type ChaincodeRet struct {
23     Code int // 0 success otherwise 1
24     Des  string //description
25 }

View Code

8.prescriptioninvoke.go代码

  1 package operation
  2 
  3 import (
  4     "github.com/hyperledger/fabric/core/chaincode/shim"
  5     "github.com/hyperledger/fabric/protos/peer"
  6     "fmt"
  7     "github.com/prescriptionserver/chaincode/go/prescription/model"
  8     "encoding/json"
  9     "github.com/prescriptionserver/chaincode/go/prescription/global"
 10     "time"
 11 )
 12 
 13 type PrescriptionInvoke struct {
 14     Stub shim.ChaincodeStubInterface
 15     Args []string
 16 }
 17 func (p *PrescriptionInvoke) Publish() peer.Response {
 18 
 19     if len(p.Args) != 1{
 20         return shim.Error("Incorrect number of arguments. Expecting 1")
 21     }
 22     fmt.Println("- start publish prescription")
 23     var pbcn model.PrescriptionBlockchain
 24     err := json.Unmarshal([]byte(p.Args[0]), &pbcn)
 25     if err != nil{
 26         return shim.Error("PrescriptionChaincode Invoke publish unmarshal failed")
 27     }
 28     pq := PrescriptionQuery{
 29         Stub:p.Stub,
 30     }
 31     _, exists := pq.GetPbcnByPid(pbcn.PrescriptionID)
 32     if exists{
 33         res := GetRetString(1,
 34             "PrescriptionChaincode Invoke publish failed : the PrescriptionID has exist ")
 35         shim.Error(res)
 36     }
 37     timestamp, err := p.Stub.GetTxTimestamp()
 38     if err != nil{
 39         res := GetRetString(1,"PrescriptionChaincode Invoke publish failed :get time stamp failed")
 40         return shim.Error(res)
 41     }
 42     global.Logger.Error("%s",timestamp)
 43     dayTime :=time.Now().Format("2010-11-11")
 44     pbcn.State=global.PrescriptionBlockchain_State_NewPublish
 45      if !p.put(pbcn){
 46          res :=GetRetString(1,"PrescriptionChaincode Invoke publish put prescription failed")
 47          return shim.Error(res)
 48      }
 49     hospitalNODayTimePrescriptionIDIndexKey,err :=p.Stub.CreateCompositeKey(global.HospitalNO_DayTime_PrescriptionID_IndexName,
 50         []string{pbcn.HospitalNO,dayTime,pbcn.PrescriptionID})
 51     if err != nil{
 52         res:=GetRetString(1,"PrescriptionChaincode Invoke publish create"+
 53             " hospitalno_daytime_prescriptionid composite key failed")
 54         return shim.Error(res)
 55     }
 56     err = p.Stub.PutState(hospitalNODayTimePrescriptionIDIndexKey,
 57         []byte(time.Now().Format("2017-11-20 12:56:56")))
 58     if err != nil{
 59         res :=GetRetString(1,"PrescriptionChaincode Invoke publish put"+
 60             " hospitalno_daytime_prescriptionid search table failed")
 61         return shim.Error(res)
 62     }
 63     patientIDPrescriptionIDIndexKey,err:=p.Stub.CreateCompositeKey(global.PatientID_PrescriptionID_IndexName,
 64         []string{pbcn.PatientID,pbcn.PrescriptionID})
 65     if err != nil{
 66         res:=GetRetString(1,"PrescriptionChaincode Invoke publish"+
 67             " create patientid_prescriptionid composite key failed")
 68         return shim.Error(res)
 69     }
 70     err = p.Stub.PutState(patientIDPrescriptionIDIndexKey,[]byte{0x00})
 71     if err != nil{
 72         res :=GetRetString(1,"PrescriptionChaincode Invoke publish put"+
 73             " patientid_prescriptionid search table failed")
 74         return shim.Error(res)
 75     }
 76     statePrescriptionIDIndexKey,err := p.Stub.CreateCompositeKey(global.State_PrescriptionID_IndexName,
 77         []string{pbcn.State,pbcn.PrescriptionID})
 78     if err != nil{
 79         res:=GetRetString(1,"PrescriptionChaincode Invoke publish"+
 80             " create state_prescriptionid composite key failed")
 81         return shim.Error(res)
 82     }
 83     err = p.Stub.PutState(statePrescriptionIDIndexKey,[]byte{0x00})
 84     if err != nil{
 85         res :=GetRetString(1,"PrescriptionChaincode Invoke publish put"+
 86             " state_prescriptionid search table failed")
 87         return shim.Error(res)
 88     }
 89     openPrescriptionDeptIDPrescriptionIDIndexKey,err :=p.Stub.CreateCompositeKey(global.OpenPrescriptionDeptID_PrescriptionID_IndexName,
 90         []string{pbcn.OpenPrescriptionDeptID,pbcn.PrescriptionID})
 91     if err != nil{
 92         res :=GetRetString(1,"PrescriptionChaincode Invoke publish"+
 93             "create openprescriptiondeptid_prescriptionid composite key failed")
 94         return shim.Error(res)
 95     }
 96     err = p.Stub.PutState(openPrescriptionDeptIDPrescriptionIDIndexKey,[]byte{0x00})
 97     if err != nil{
 98         res:=GetRetString(1,"PrescriptionChaincode Invoke putlish put"+
 99             "openprescriptiondeptid_prescriptionid composite key failed")
100         return shim.Error(res)
101     }
102     res :=GetRetByte(0,"invoke publish success")
103     return shim.Success(res)
104 }
105 func (p *PrescriptionInvoke) put(pbcn model.PrescriptionBlockchain) bool {
106     bytes, err := json.Marshal(pbcn)
107     if err != nil{
108         return false
109     }
110     err = p.Stub.PutState(pbcn.PrescriptionID,bytes)
111     if err != nil{
112         return false
113     }
114     return true
115 }
116 func (p *PrescriptionInvoke) Endorse() peer.Response {
117     if len(p.Args)<3{
118         res:=GetRetString(1,"PrescriptionChaincode Invoke endorse args<3")
119         return shim.Error(res)
120     }
121     pq := PrescriptionQuery{
122         Stub:p.Stub,
123     }
124     pbcn, b := pq.GetPbcnByPid(p.Args[0])
125     if !b{
126         res:=GetRetString(1,"PrescriptionChaincode Invoke endorse get prescription error")
127         return shim.Error(res)
128     }
129     if pbcn.OpenPrescriptionDoctorID == p.Args[1]{
130         res:=GetRetString(1,"PrescriptionChaincode Invoke endorse failed:"+
131             "PendingReceivePrescriptionID should not be same with OpenPrescriptionDoctorID")
132         return shim.Error(res)
133     }
134     if pbcn.ReceivingPrescriptionWorkID==p.Args[1]{
135         res:=GetRetString(1,"PrescriptionChaincode Invoke endorse failed:"+
136             "PendingReceivePrescriptionID should not be same with ReceivingPrescriptionWorkID")
137         return shim.Error(res)
138     }
139     pbcn.PendingReceivePrescriptionDeptID=p.Args[1]
140     pbcn.PendingReceivePrescriptionWorkID=p.Args[2]
141     pbcn.State=global.PrescriptionBlockchain_State_EndrWaitSign
142     pbcn.ReceivingPrescriptionDeptID=""
143     pbcn.ReceivingPrescriptionWorkID=""
144     b=p.put(pbcn)
145     if !b{
146         res:=GetRetString(1,"PrescriptionChaincode Invoke endorse put error")
147         return shim.Error(res)
148     }
149     pendingReceivePrescriptionDeptIDPrescriptionIDIndexKey,err:=p.Stub.CreateCompositeKey(global.PendingReceivePrescriptionDeptID_PrescriptionID_IndexName,
150         []string{pbcn.PendingReceivePrescriptionDeptID,pbcn.PrescriptionID})
151     if err != nil{
152         res:=GetRetString(1,"PrescriptionChaincode Invoke endorse"+
153             " create pendingreceiveprescriptiondeptid_prescriptionid composite key failed")
154         return shim.Error(res)
155     }
156     err = p.Stub.PutState(pendingReceivePrescriptionDeptIDPrescriptionIDIndexKey,[]byte{0x00})
157     if err != nil {
158         res :=GetRetString(1,"PrescriptionChaincode Invoke endorse"+
159             " put PendingReceivePrescriptionDeptIDPrescriptionIDIndexKey error")
160         return shim.Error(res)
161     }
162     res:=GetRetByte(0,"invoke endorse success")
163     return shim.Success(res)
164 }
165 func (p *PrescriptionInvoke) Accept() peer.Response {
166     if len(p.Args) <3{
167         res:=GetRetString(1,"PrescriptionChaincode Invoke accept args<3")
168         return shim.Error(res)
169     }
170     pq:= PrescriptionQuery{
171         Stub:p.Stub,
172     }
173     pbcn,b:=pq.GetPbcnByPid(p.Args[0])
174     if !b{
175         res:=GetRetString(1,"PrescriptionChaincode Invoke accept get prescription error")
176         return shim.Error(res)
177     }
178     if pbcn.PendingReceivePrescriptionDeptID != p.Args[1]{
179         res:=GetRetString(1,"PrescriptionChaincode Invoke accept error:"+
180             "PendingReceivePrescriptionDeptID is not consistent with ReceivingPrescriptionDeptID")
181         return shim.Error(res)
182     }
183     if pbcn.PendingReceivePrescriptionWorkID != p.Args[2]{
184         res:=GetRetString(1,"PrescriptionChaincode Invoke accept error:"+
185             "PendingReceivePrescriptionWorkID is not consistent with ReceivingPrescriptionWorkID")
186         return shim.Error(res)
187     }
188     pbcn.PendingReceivePrescriptionDeptID=""
189     pbcn.PendingReceivePrescriptionWorkID=""
190     pbcn.ReceivingPrescriptionDeptID=p.Args[1]
191     pbcn.ReceivingPrescriptionWorkID=p.Args[2]
192     pbcn.State=global.PrescriptionBlockchain_state_EndrSigned
193     b = p.put(pbcn)
194     if !b{
195         res :=GetRetString(1,"PrescriptionChaincode Invoke accept put error")
196         return shim.Error(res)
197     }
198     receivingPrescriptionDeptIDIndexKey,err:=p.Stub.CreateCompositeKey(global.ReceivingPrescriptionDeptID_PrescriptionID_IndexName,
199         []string{pbcn.ReceivingPrescriptionDeptID,pbcn.PrescriptionID})
200     if err != nil{
201         res:=GetRetString(1,"PrescriptionChaincode Invoke accept"+
202             " create receivingprescriptiondeptid_prescriptionid composite key failed")
203         return shim.Error(res)
204     }
205     err=p.Stub.PutState(receivingPrescriptionDeptIDIndexKey,[]byte{0x00})
206     if err != nil{
207         res :=GetRetString(1,"PrescriptionChaincode Invoke accept"+
208             " put ReceivingPrescriptionDeptIDPrescriptionIDIndexKey error")
209         return shim.Error(res)
210     }
211     res:=GetRetByte(0,"invoke accept success")
212     return shim.Success(res)
213 }

View Code

9.prescriptionquery.go代码

  1 package operation
  2 
  3 import (
  4     "github.com/prescriptionserver/chaincode/go/prescription/model"
  5     "github.com/hyperledger/fabric/core/chaincode/shim"
  6     "encoding/json"
  7     "github.com/hyperledger/fabric/protos/peer"
  8     "github.com/prescriptionserver/chaincode/go/prescription/global"
  9     "bytes"
 10 )
 11 
 12 type PrescriptionQuery struct {
 13     Stub shim.ChaincodeStubInterface
 14     Args []string
 15 }
 16 
 17 func (p *PrescriptionQuery) GetPbcnByPid(pid string)(model.PrescriptionBlockchain,bool) {
 18     var pbcn model.PrescriptionBlockchain
 19     bytes, err := p.Stub.GetState(pid)
 20     if bytes == nil {
 21         return pbcn, false
 22     }
 23     err =json.Unmarshal(bytes,&pbcn)
 24     if err != nil{
 25         return pbcn,false
 26     }
 27     return pbcn,true
 28 }
 29 func (p *PrescriptionQuery) GetPbcnsByOpdid() peer.Response {
 30     if len(p.Args) != 1{
 31         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyopdid args!=1")
 32         return shim.Error(res)
 33     }
 34     pspnsIterator,err :=p.Stub.GetStateByPartialCompositeKey(global.OpenPrescriptionDeptID_PrescriptionID_IndexName,
 35         []string{p.Args[0]})
 36     if err != nil{
 37         res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyopdid"+
 38             "getstatebypartialcompositekey error")
 39         return shim.Error(res)
 40     }
 41     defer pspnsIterator.Close()
 42     var pbcns []model.PrescriptionBlockchain
 43     for pspnsIterator.HasNext() {
 44         kv,err:=pspnsIterator.Next()
 45         if err != nil{
 46             res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyopdid iterator.next error")
 47             return shim.Error(res)
 48         }
 49         _, compositeKey, err := p.Stub.SplitCompositeKey(kv.Key)
 50         if err != nil{
 51             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyopdid"+
 52                 "split composite key error")
 53             return shim.Error(res)
 54         }
 55         if len(compositeKey) <2{
 56             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyopdid"+
 57                 "composite keys len<2")
 58             return shim.Error(res)
 59         }
 60         pbcn, b := p.GetPbcnByPid(compositeKey[1])
 61         if !b{
 62             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyopdid getpbcnbypid error")
 63             return shim.Error(res)
 64         }
 65         pbcns =append(pbcns,pbcn)
 66     }
 67     pbcndata,err :=json.Marshal(pbcns)
 68     if err != nil{
 69         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyopdid json marshal error")
 70         return shim.Error(res)
 71     }
 72     return shim.Success(pbcndata)
 73 }
 74 func (p *PrescriptionQuery) GetPbcnsByPrpdid() peer.Response {
 75     if len(p.Args) != 1{
 76         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyprpdid args!=1")
 77         return shim.Error(res)
 78     }
 79     pspnsIterator,err :=p.Stub.GetStateByPartialCompositeKey(
 80         global.PendingReceivePrescriptionDeptID_PrescriptionID_IndexName,
 81         []string{p.Args[0]})
 82     if err != nil{
 83         res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyprpdid"+
 84             "getstatebypartialcompositekey error")
 85         return shim.Error(res)
 86     }
 87     defer pspnsIterator.Close()
 88     var pbcns []model.PrescriptionBlockchain
 89     for pspnsIterator.HasNext() {
 90         kv,err:=pspnsIterator.Next()
 91         if err != nil{
 92             res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyprpdid iterator.next error")
 93             return shim.Error(res)
 94         }
 95         _, compositeKey, err := p.Stub.SplitCompositeKey(kv.Key)
 96         if err != nil{
 97             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyprpdid"+
 98                 "split composite key error")
 99             return shim.Error(res)
100         }
101         if len(compositeKey) <2{
102             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyprpdid"+
103                 "composite keys len<2")
104             return shim.Error(res)
105         }
106         pbcn, b := p.GetPbcnByPid(compositeKey[1])
107         if !b{
108             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyprpdid getpbcnbypid error")
109             return shim.Error(res)
110         }
111         pbcns =append(pbcns,pbcn)
112     }
113     pbcndata,err :=json.Marshal(pbcns)
114     if err != nil{
115         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyprpdid json marshal error")
116         return shim.Error(res)
117     }
118     return shim.Success(pbcndata)
119 }
120 func (p *PrescriptionQuery) GetPbcnsByState() peer.Response {
121     if len(p.Args) != 1{
122         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbystate args!=1")
123         return shim.Error(res)
124     }
125     pspnsIterator,err :=p.Stub.GetStateByPartialCompositeKey(global.State_PrescriptionID_IndexName,
126         []string{p.Args[0]})
127     if err != nil{
128         res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbystate"+
129             "getstatebypartialcompositekey error")
130         return shim.Error(res)
131     }
132     defer pspnsIterator.Close()
133     var pbcns []model.PrescriptionBlockchain
134     for pspnsIterator.HasNext() {
135         kv,err:=pspnsIterator.Next()
136         if err != nil{
137             res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbystate iterator.next error")
138             return shim.Error(res)
139         }
140         _, compositeKey, err := p.Stub.SplitCompositeKey(kv.Key)
141         if err != nil{
142             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbystate"+
143                 "split composite key error")
144             return shim.Error(res)
145         }
146         if len(compositeKey) <2{
147             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbystate"+
148                 "composite keys len<2")
149             return shim.Error(res)
150         }
151         pbcn, b := p.GetPbcnByPid(compositeKey[1])
152         if !b{
153             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbystate getpbcnbypid error")
154             return shim.Error(res)
155         }
156         pbcns =append(pbcns,pbcn)
157     }
158     pbcndata,err :=json.Marshal(pbcns)
159     if err != nil{
160         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbystate json marshal error")
161         return shim.Error(res)
162     }
163     return shim.Success(pbcndata)
164 }
165 func (p *PrescriptionQuery) GetPbcnsByPtnid() peer.Response {
166     if len(p.Args) != 1{
167         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyptnid args!=1")
168         return shim.Error(res)
169     }
170     pspnsIterator,err :=p.Stub.GetStateByPartialCompositeKey(global.PatientID_PrescriptionID_IndexName,
171         []string{p.Args[0]})
172     if err != nil{
173         res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyptnid"+
174             "getstatebypartialcompositekey error")
175         return shim.Error(res)
176     }
177     defer pspnsIterator.Close()
178     var pbcns []model.PrescriptionBlockchain
179     for pspnsIterator.HasNext() {
180         kv,err:=pspnsIterator.Next()
181         if err != nil{
182             res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyptnid iterator.next error")
183             return shim.Error(res)
184         }
185         _, compositeKey, err := p.Stub.SplitCompositeKey(kv.Key)
186         if err != nil{
187             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyptnid"+
188                 "split composite key error")
189             return shim.Error(res)
190         }
191         if len(compositeKey) <2{
192             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyptnid"+
193                 "composite keys len<2")
194             return shim.Error(res)
195         }
196         pbcn, b := p.GetPbcnByPid(compositeKey[1])
197         if !b{
198             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyptnid getpbcnbypid error")
199             return shim.Error(res)
200         }
201         pbcns =append(pbcns,pbcn)
202     }
203     pbcndata,err :=json.Marshal(pbcns)
204     if err != nil{
205         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyptnid json marshal error")
206         return shim.Error(res)
207     }
208     return shim.Success(pbcndata)
209 }
210 func (p *PrescriptionQuery) GetPbcnsByRpdid() peer.Response {
211     if len(p.Args) != 1{
212         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyrpdid args!=1")
213         return shim.Error(res)
214     }
215     pspnsIterator,err :=p.Stub.GetStateByPartialCompositeKey(
216         global.ReceivingPrescriptionDeptID_PrescriptionID_IndexName,
217         []string{p.Args[0]})
218     if err != nil{
219         res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyrpdid"+
220             "getstatebypartialcompositekey error")
221         return shim.Error(res)
222     }
223     defer pspnsIterator.Close()
224     var pbcns []model.PrescriptionBlockchain
225     for pspnsIterator.HasNext() {
226         kv,err:=pspnsIterator.Next()
227         if err != nil{
228             res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyrpdid iterator.next error")
229             return shim.Error(res)
230         }
231         _, compositeKey, err := p.Stub.SplitCompositeKey(kv.Key)
232         if err != nil{
233             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyrpdid"+
234                 "split composite key error")
235             return shim.Error(res)
236         }
237         if len(compositeKey) <2{
238             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyrpdid"+
239                 "composite keys len<2")
240             return shim.Error(res)
241         }
242         pbcn, b := p.GetPbcnByPid(compositeKey[1])
243         if !b{
244             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyrpdid getpbcnbypid error")
245             return shim.Error(res)
246         }
247         pbcns =append(pbcns,pbcn)
248     }
249     pbcndata,err :=json.Marshal(pbcns)
250     if err != nil{
251         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyrpdid json marshal error")
252         return shim.Error(res)
253     }
254     return shim.Success(pbcndata)
255 }
256 func (p *PrescriptionQuery) GetPbcnsByHndt() peer.Response {
257     if len(p.Args) !=2{
258         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyhndt args !=2")
259         return shim.Error(res)
260     }
261     pspnsIterator,err :=p.Stub.GetStateByPartialCompositeKey(global.HospitalNO_DayTime_PrescriptionID_IndexName,
262         []string{p.Args[0],p.Args[1]})
263     if err != nil{
264         res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyhndt"+
265             "getstatebypartialcompositekey error")
266         return shim.Error(res)
267     }
268     defer pspnsIterator.Close()
269     var pbcns []model.PrescriptionBlockchain
270     for pspnsIterator.HasNext() {
271         kv,err:=pspnsIterator.Next()
272         if err != nil{
273             res:=GetRetString(1,"PrescriptionChaincode query getpbcnsbyhndt iterator.next error")
274             return shim.Error(res)
275         }
276         _, compositeKey, err := p.Stub.SplitCompositeKey(kv.Key)
277         if err != nil{
278             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyhndt"+
279                 "split composite key error")
280             return shim.Error(res)
281         }
282         if len(compositeKey) <3{
283             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyhndt"+
284                 "composite keys len<3")
285             return shim.Error(res)
286         }
287         pbcn, b := p.GetPbcnByPid(compositeKey[2])
288         if !b{
289             res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyhndt getpbcnbypid error")
290             return shim.Error(res)
291         }
292         pbcns =append(pbcns,pbcn)
293     }
294     pbcndata,err :=json.Marshal(pbcns)
295     if err != nil{
296         res :=GetRetString(1,"PrescriptionChaincode query getpbcnsbyhndt json marshal error")
297         return shim.Error(res)
298     }
299     return shim.Success(pbcndata)
300 }
301 func (p *PrescriptionQuery) GetHistoryByPid() peer.Response  {
302     if len(p.Args) != 1{
303         res :=GetRetString(1,"PrescriptionChaincode query gethistorybypid args!=1")
304         return shim.Error(res)
305     }
306     pbcn, b := p.GetPbcnByPid(p.Args[0])
307     if !b{
308         res :=GetRetString(1,"PrescriptionChaincode query gethistorybypid get prescription error")
309         return shim.Error(res)
310     }
311     historyIterator, err := p.Stub.GetHistoryForKey(p.Args[0])
312     if err != nil{
313         res:=GetRetString(1,"PrescriptionChaincode query gethistorybypid"+
314             "get history for key error")
315         return shim.Error(res)
316     }
317     defer historyIterator.Close()
318     var historyItems []model.HistoryItem
319     var hispbcn model.PrescriptionBlockchain
320     for historyIterator.HasNext(){
321         hisData, err := historyIterator.Next()
322         if err != nil{
323             res :=GetRetString(1,"PrescriptionChaincode query gethistorybypid"+
324                 "history iterator next error")
325             return shim.Error(res)
326         }
327         hisItem :=model.HistoryItem{
328             TxId:hisData.TxId,
329         }
330         if hisData.Value ==nil{
331             hisItem.PrescriptionBlockchain=model.PrescriptionBlockchain{}
332         }else {
333             err = json.Unmarshal(hisData.Value, &hispbcn)
334             if err != nil {
335                 res := GetRetString(1, "PrescriptionChaincode query gethistorybypid"+
336                     "json unmarshal error")
337                 return shim.Error(res)
338             }
339             hisItem.PrescriptionBlockchain=hispbcn
340         }
341         historyItems = append(historyItems,hisItem)
342     }
343     pbcn.History=historyItems
344     pbcndata,err :=json.Marshal(pbcn)
345     if err != nil{
346         res := GetRetString(1, "PrescriptionChaincode query gethistorybypid"+
347             "json marshal error")
348         return shim.Error(res)
349     }
350     return shim.Success(pbcndata)
351 }
352 func (p *PrescriptionQuery) GetPbcnByPrescriptionID() peer.Response {
353     pbcn,b:=p.GetPbcnByPid(p.Args[0])
354     if !b{
355         res :=GetRetString(1,"PrescriptionChaincode query getpbcnbyprescriptionid get pbcn error")
356         return shim.Error(res)
357     }
358     pbcnData, err := json.Marshal(pbcn)
359     if err != nil{
360         res :=GetRetString(1,"PrescriptionChaincode query getpbcnbyprescriptionid json marshal error")
361         return shim.Error(res)
362     }
363     return shim.Success(pbcnData)
364 }
365 func (p *PrescriptionQuery) GetResultByQueryString() peer.Response {
366     if len(p.Args) != 1{
367         res :=GetRetString(1,"PrescriptionChaincode query getresultbyquerystring args!=1")
368         return shim.Error(res)
369     }
370     resultsIterator, err := p.Stub.GetQueryResult(p.Args[0])
371     if err != nil {
372         res :=GetRetString(1,"PrescriptionChaincode query getresultbyquerystring"+
373             "get query result error")
374         return shim.Error(res)
375     }
376     defer resultsIterator.Close()
377 
378     var datas bytes.Buffer
379     datas.WriteString("[")
380 
381     arrayState := false
382     for resultsIterator.HasNext() {
383         queryData, err := resultsIterator.Next()
384         if err != nil {
385             res :=GetRetString(1,"PrescriptionChaincode query getresultbyquerystring"+
386                 "results iterator next error")
387             return shim.Error(res)
388         }
389         if arrayState == true {
390             datas.WriteString(",")
391         }
392         datas.WriteString("{\"Key\":")
393         datas.WriteString("\"")
394         datas.WriteString(queryData.Key)
395         datas.WriteString("\"")
396 
397         datas.WriteString(", \"Record\":")
398         // Record is a JSON object, so we write as-is
399         datas.WriteString(string(queryData.Value))
400         datas.WriteString("}")
401         arrayState = true
402     }
403     datas.WriteString("]")
404     
405     return shim.Success(datas.Bytes())
406 }

View Code

10.prescriptionchaincode.go代码

 1 package main
 2 
 3 import (
 4     "github.com/hyperledger/fabric/core/chaincode/shim"
 5     "log"
 6     "github.com/hyperledger/fabric/protos/peer"
 7     "github.com/prescriptionserver/chaincode/go/prescription/global"
 8     "github.com/prescriptionserver/chaincode/go/prescription/operation"
 9 )
10 type PrescriptionChaincode struct {
11 
12 }
13 
14 func (p PrescriptionChaincode) Init(stub shim.ChaincodeStubInterface) peer.Response {
15     return shim.Success(nil)
16 }
17 func (p *PrescriptionChaincode) Invoke(stub shim.ChaincodeStubInterface) peer.Response  {
18     function,args := stub.GetFunctionAndParameters()
19     global.Logger.Info("%s%s","PrescriptionChaincode function=",function)
20     global.Logger.Info("%s%s","PrescriptionChaincode args=",args)
21     pi :=operation.PrescriptionInvoke{
22         Stub:stub,
23         Args:args,
24     }
25     pq := operation.PrescriptionQuery{
26         Stub:stub,
27         Args:args,
28     }
29     if function == "publish" {
30         return pi.Publish()
31     } else if function == "endorse" {
32         return pi.Endorse()
33     } else if function == "accept" {
34         return pi.Accept()
35     }
36 
37     if function == "getpbcnbypid" {
38         return pq.GetPbcnByPrescriptionID()
39     } else if function == "getpbcnsbyopdid" {
40         return pq.GetPbcnsByOpdid()
41     } else if function == "getpbcnsbyprpdid" {
42         return pq.GetPbcnsByPrpdid()
43     }else if function == "getpbcnsbystate" {
44         return pq.GetPbcnsByState()
45     }else if function == "getpbcnsbyptnid" {
46         return pq.GetPbcnsByPtnid()
47     }else if function == "getpbcnsbyrpdid" {
48         return pq.GetPbcnsByRpdid()
49     }else if function == "getpbcnsbyhndt" {
50         return pq.GetPbcnsByHndt()
51     }else if function == "gethistorybypid" {
52         return pq.GetHistoryByPid()
53     }else if function == "getresultbyquerystring" {
54         return pq.GetResultByQueryString()
55     }
56 
57     res := operation.GetRetString(1,"PrescriptionChaincode Unkown method!")
58     global.Logger.Info("%s",res)
59     global.Logger.Infof("%s",res)
60     return shim.Error(res)
61 }
62 
63 
64 func main() {
65     if err := shim.Start(new (PrescriptionChaincode));err != nil{
66         log.Printf("error starting prescription chaincode: %v",err)
67     }
68 }

View Code

go client sdk的相关开发以后有时间补全吧，chaincode sdk相关的内容有时间了再补

　

 

转载于:https://www.cnblogs.com/apolov-fabric/p/9670265.html