隐式 QueryStringBindable java.util.List[models.输入时间表数据存储]

Question

嗨，我正在尝试将models.InputTimeSheetDataStore类型的对象列表从视图传递到应用程序.java但收到No QueryString binder found for type java.util.List[models.InputTimeSheetDataStore]. Try to implement an implicit QueryStringBindable for this type错误

在应用程序中.java我正在传递要查看的对象列表

InputTimeSheetDataStore ITSDS= new InputTimeSheetDataStore();
ITSDS.ConsultantName=EmployeeFilter;
ITSDS.Client=ClientFilter;
ITSDS.Project=ProjectFilter;
ITSDS.Role=EmployeeRoleFilter;
ITSDS.Task=Task;
ITSDS.TimeSheetDate=TimeSheetDate;
ITSDS.Hours=TaskHours;
ITSDS.IsBilled=IsBilled;
ITSDS.Workplace=WorkPlace;
InputTimeSheetList.add(ITSDS);
return ok(TimeSheetInput.render(Consultant.PopulateConsultant(),Client.PopulateClient(),Project.PopulateProject(ClientFilter),
Consultant.PopulateConsultantRole(),Consultant.ConsultantRoleRate(EmployeeRoleFilter),InputTimeSheetList));

鉴于我正在将该对象传递回应用程序.java

@(EmployeeList:java.util.List[String],ClientList:java.util.List[String],
ProjectList:java.util.List[String],EmployeeRoleList: java.util.List[String],Rate:String,
CurrentPage:List[InputTimeSheetDataStore])
<form id="TimeSheetEntryForm" name="TimeSheetEntryForm" action="@{routes.Application.save("name","name","name","name","name","name","name","name","name",CurrentPage)}" method="GET">
<code.....>

这是我的类文件

输入时间表数据存储.java

package models;

public class InputTimeSheetDataStore {
public String ConsultantName;
public String Client;
public String Project;
public String Role;
public String Task;
public String TimeSheetDate;
public String Hours;
public String IsBilled;
public String Workplace;
public String  getConsultantName(){
return this.ConsultantName;
}
public String  getClient(){
return this.Client;
}
public String  getProject(){
return this.Project;
}
public String  getRole(){
return this.Role;
}
public String  getTask(){
return this.Task;
}
public String  getTimeSheetDate(){
return this.TimeSheetDate;
}
public String  getHours(){
return this.Hours;
}
public String  getIsBilled(){
return this.IsBilled;
}
public String  getWorkPlace(){
return this.Workplace;
}
}

我的路线是

GET     /Application/save            controllers.Application.save(EmployeeFilter:String,ClientFilter:String,ProjectFilter:String, EmployeeRoleFilter:String,Task:String,TaskHours:String,TimeSheetDate:String,IsBilled:String,WorkPlace:String,CurrentPage:java.util.List[models.InputTimeSheetDataStore])

有人可以帮助我使用输入时间表数据存储类型的隐式查询绑定器

提前致谢

Answer 1

嗨，这是QueryStringbindable的示例实现：

public class InputTimeSheetDataStore implements QueryStringBindable<InputTimeSheetDataStore> {
public String consultantName, client, project;
@Override
public Optional bind(String key, Map data) {
if (data.containsKey("consultantName")) {
this. consultantName = data.get("consultantName").toString();
}
if (data.containsKey("client")) {
this.client = data.get("client").toString();
}
if (data.containsKey("project")) {
this.project = data.get("project").toString();
}
return Optional.of(this);
}
@Override
public String unbind(String key) {
return null;
}
@Override
public String javascriptUnbind() {
return null;
}
}

额外的提示是，在编写编程语言时，请确保您遵循代码约定。例如：Java语法中的约定你必须为第一个字符编写小写变量;

public String ConsultantName; // this is wrong
public String consultantName; //this is right

希望对您有所帮助。