将您的请求更改为 JsonObjectRequest
JsonObjectRequest jsonObjectRequest= new JsonObjectRequest(Request.Method.GET, url, null, new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
progressDialog.dismiss();
mDashBoardVOsList = parseJsonResponse(response);
// set adapter for recycler view
mRecyclerViewAdapter = new MyRecyclerViewAdapter(mDashBoardVOsList);
mRecyclerView.setAdapter(mRecyclerViewAdapter);
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
progressDialog.dismiss();
Log.e(TAG, "Error occured on DashBoard request :" + error.getMessage());
Toast.makeText(getContext(), "Error loading DashBoard report :" + error.getMessage(), Toast.LENGTH_LONG).show();
}
});
还有把json解析改成这个
private List parseJsonResponse(JSONObject response) {
List<DashBoardVO> dashboardVOsList = null;
if (response != null) {
JSONArray array=response.getJSONArray("lstGraph");
dashboardVOsList = new ArrayList<>();
for (int index = 0; index < array.length(); index++) {
DashBoardVO dashBoardVO = new DashBoardVO();
try {
JSONObject jsonObject = array.getJSONObject(index);
dashBoardVO.setReceivable(jsonObject.getDouble("Receivable"));
dashBoardVO.setPayable(jsonObject.getDouble("Payable"));
dashboardVOsList.add(dashBoardVO);
} catch (JSONException e) {
Log.e(TAG, "Error occured while parsing JSON :" + e.getMessage());
}
}
}
return dashboardVOsList;
}
更新：
您可以使用 Gson 库将 JSON 转换为 Java Pojo 类。
在你的 build.gradle 中添加 gson 依赖
compile 'com.google.code.gson:gson:2.8.1'
添加以下模型
-----------------------------------com.example.DashboardVOsList.java-----------------------------------
package com.example;
import java.util.List;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
public class DashboardVOsList {
@SerializedName("Receivable")
@Expose
private Double receivable;
@SerializedName("Payable")
@Expose
private Double payable;
@SerializedName("oPendingFollowup")
@Expose
private OPendingFollowup oPendingFollowup;
@SerializedName("oPDCReceive")
@Expose
private OPDCReceive oPDCReceive;
@SerializedName("oInvOverdue")
@Expose
private OInvOverdue oInvOverdue;
@SerializedName("oInvAlmostOverdue")
@Expose
private OInvAlmostOverdue oInvAlmostOverdue;
@SerializedName("lstGraph")
@Expose
private List<LstGraph> lstGraph = null;
public Double getReceivable() {
return receivable;
}
public void setReceivable(Double receivable) {
this.receivable = receivable;
}
public Double getPayable() {
return payable;
}
public void setPayable(Double payable) {
this.payable = payable;
}
public OPendingFollowup getOPendingFollowup() {
return oPendingFollowup;
}
public void setOPendingFollowup(OPendingFollowup oPendingFollowup) {
this.oPendingFollowup = oPendingFollowup;
}
public OPDCReceive getOPDCReceive() {
return oPDCReceive;
}
public void setOPDCReceive(OPDCReceive oPDCReceive) {
this.oPDCReceive = oPDCReceive;
}
public OInvOverdue getOInvOverdue() {
return oInvOverdue;
}
public void setOInvOverdue(OInvOverdue oInvOverdue) {
this.oInvOverdue = oInvOverdue;
}
public OInvAlmostOverdue getOInvAlmostOverdue() {
return oInvAlmostOverdue;
}
public void setOInvAlmostOverdue(OInvAlmostOverdue oInvAlmostOverdue) {
this.oInvAlmostOverdue = oInvAlmostOverdue;
}
public List<LstGraph> getLstGraph() {
return lstGraph;
}
public void setLstGraph(List<LstGraph> lstGraph) {
this.lstGraph = lstGraph;
}
}
-----------------------------------com.example.LstGraph.java-----------------------------------
package com.example;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
public class LstGraph {
@SerializedName("Receivable")
@Expose
private Double receivable;
@SerializedName("Payable")
@Expose
private Double payable;
@SerializedName("CashFlow")
@Expose
private Double cashFlow;
@SerializedName("CFDate")
@Expose
private String cFDate;
public Double getReceivable() {
return receivable;
}
public void setReceivable(Double receivable) {
this.receivable = receivable;
}
public Double getPayable() {
return payable;
}
public void setPayable(Double payable) {
this.payable = payable;
}
public Double getCashFlow() {
return cashFlow;
}
public void setCashFlow(Double cashFlow) {
this.cashFlow = cashFlow;
}
public String getCFDate() {
return cFDate;
}
public void setCFDate(String cFDate) {
this.cFDate = cFDate;
}
}
-----------------------------------com.example.OInvAlmostOverdue.java-----------------------------------
package com.example;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
public class OInvAlmostOverdue {
@SerializedName("Customers")
@Expose
private Integer customers;
@SerializedName("Invoices")
@Expose
private Integer invoices;
@SerializedName("PerRec")
@Expose
private Double perRec;
@SerializedName("InvValue")
@Expose
private Double invValue;
public Integer getCustomers() {
return customers;
}
public void setCustomers(Integer customers) {
this.customers = customers;
}
public Integer getInvoices() {
return invoices;
}
public void setInvoices(Integer invoices) {
this.invoices = invoices;
}
public Double getPerRec() {
return perRec;
}
public void setPerRec(Double perRec) {
this.perRec = perRec;
}
public Double getInvValue() {
return invValue;
}
public void setInvValue(Double invValue) {
this.invValue = invValue;
}
}
-----------------------------------com.example.OInvOverdue.java-----------------------------------
package com.example;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
public class OInvOverdue {
@SerializedName("Customers")
@Expose
private Integer customers;
@SerializedName("Invoices")
@Expose
private Integer invoices;
@SerializedName("InvValue")
@Expose
private Double invValue;
@SerializedName("YetToFollow")
@Expose
private Integer yetToFollow;
public Integer getCustomers() {
return customers;
}
public void setCustomers(Integer customers) {
this.customers = customers;
}
public Integer getInvoices() {
return invoices;
}
public void setInvoices(Integer invoices) {
this.invoices = invoices;
}
public Double getInvValue() {
return invValue;
}
public void setInvValue(Double invValue) {
this.invValue = invValue;
}
public Integer getYetToFollow() {
return yetToFollow;
}
public void setYetToFollow(Integer yetToFollow) {
this.yetToFollow = yetToFollow;
}
}
-----------------------------------com.example.OPDCReceive.java-----------------------------------
package com.example;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
public class OPDCReceive {
@SerializedName("Customers")
@Expose
private Integer customers;
@SerializedName("PDCs")
@Expose
private Integer pDCs;
@SerializedName("UpTo7Days")
@Expose
private String upTo7Days;
@SerializedName("PDCValue")
@Expose
private Double pDCValue;
public Integer getCustomers() {
return customers;
}
public void setCustomers(Integer customers) {
this.customers = customers;
}
public Integer getPDCs() {
return pDCs;
}
public void setPDCs(Integer pDCs) {
this.pDCs = pDCs;
}
public String getUpTo7Days() {
return upTo7Days;
}
public void setUpTo7Days(String upTo7Days) {
this.upTo7Days = upTo7Days;
}
public Double getPDCValue() {
return pDCValue;
}
public void setPDCValue(Double pDCValue) {
this.pDCValue = pDCValue;
}
}
-----------------------------------com.example.OPendingFollowup.java-----------------------------------
package com.example;
import com.google.gson.annotations.Expose;
import com.google.gson.annotations.SerializedName;
public class OPendingFollowup {
@SerializedName("Customers")
@Expose
private Integer customers;
@SerializedName("Invoices")
@Expose
private Integer invoices;
@SerializedName("PerRec")
@Expose
private Double perRec;
@SerializedName("InvValue")
@Expose
private Double invValue;
public Integer getCustomers() {
return customers;
}
public void setCustomers(Integer customers) {
this.customers = customers;
}
public Integer getInvoices() {
return invoices;
}
public void setInvoices(Integer invoices) {
this.invoices = invoices;
}
public Double getPerRec() {
return perRec;
}
public void setPerRec(Double perRec) {
this.perRec = perRec;
}
public Double getInvValue() {
return invValue;
}
public void setInvValue(Double invValue) {
this.invValue = invValue;
}
}
将 json 转换为 java pojo 使用下面的代码
private DashboardVOsList parseJsonResponse(JSONObject response) {
Gson gson =new Gson();
DashboardVOsList dashboardVOsList= gson.fromJson(response.toString(),DashboardVOsList.class);
return dashboardVOsList
}
您可以使用http://www.jsonschema2pojo.org/ 来创建模型