找不到提供程序类:运行Jersey REST示例应用程序时 [英] No provider classes found: when running Jersey REST example application

问题描述

我尝试过.但是，由于我对此很陌生，因此无法弄清问题.我已经附上了几个屏幕截图，以查看我现在面临的问题.

I tried working on it. But,not able to figure out the issue since I'm quite new to this. I have attached several screenshots to see the issue I'm facing right now.

@Path("/emp")
public class EmployeeService {

@GET
@Path("/emp/{empID}")
@Produces(MediaType.APPLICATION_XML)
public Employee getEmployee(@PathParam(value = "empID") String empID) {
    Employee employee = new Employee();
    employee.setEmailId(empID);
    employee.setName("Rony John");
    employee.setEmailId("[e-mail]");
    return employee;
}

@POST
@Path("/create")
@Consumes(MediaType.APPLICATION_XML)
@Produces(MediaType.APPLICATION_XML)
public Employee createEmployee(Employee employee) {
    // Create logic
    return employee;

}

@POST
@Path("/update")
@Consumes(MediaType.APPLICATION_XML)
@Produces(MediaType.APPLICATION_XML)
public Employee updateEmployee(Employee employee) {
    employee.setName(employee.getName() + " updated");
    return employee;
}

@DELETE
@Path("/delete/{empID}")
public Response deleteEmployee(@PathParam(value = "empID") String empID) {
    return Response.status(200)
            .entity("Employee with " + empID + " is deleted successfully.")
            .build();

}

}

推荐答案

缺少提供程序并不重要，这仅意味着您没有任何提供程序.

The lack of providers is not relevant, it just means you don't have any.

您有一个index.jsp，但是如果您将Jersey过滤器映射到上下文根(/)，这就是说那里没有资源-根据您的屏幕快照，您只有一个资源，从/emp开始，其中更深层路径中的CRUD操作的子资源.

You have an index.jsp, but if you mapped the Jersey filter at the context root (/), it's rightfully saying there's no resource there - based on your screenshots you only have one resource, starting at /emp which has sub-resources for the CRUD operations at deeper paths.

第二看，您的index.jsp在WEB-INF中.我认为这不应该基于您似乎试图将一个简单的示例结合在一起的事实.

On second look, your index.jsp is in WEB-INF. I don't think it should be based on the fact you appear to be trying to get a simple example together.

那么，您希望在/JerseyRESTCRUD/看到什么?

So, what do you expect to see at /JerseyRESTCRUD/?

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