如何使用put方法将数据插入到使用restful webservice MySQL数据库中

Question

我使用这个教程，我创建了这个表(id，用户名）打印；现在我要使用restful web服务向其插入数据

我应该在“内容”文本框中放入什么内容来完成此操作？

这是我的绘画课

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package entities;

import java.io.Serializable;
import javax.persistence.Basic;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.NamedQueries;
import javax.persistence.NamedQuery;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import javax.xml.bind.annotation.XmlRootElement;

/**
 *
 * @author subhi
 */
@Entity
@Table(name = "prints")

@XmlRootElement（name=“Prints.findall”，query=“从Prints p中选择p”），@namedquery（name=“Prints.findbyid”，query=“从Prints p中选择p.id=：id”），@namedquery（name=“Prints.findbyusername”，query=“从Prints p中选择p.username=：username”）}）公共类打印实现Serializable{private static final long serialVersionUID=1L；@id@basic（可选=false)@notnull@column（

    public Prints() {
    }

    public Prints(Integer id) {
        this.id = id;
    }

    public Prints(Integer id, String username) {
        this.id = id;
        this.username = username;
    }

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getUsername() {
        return username;
    }

    public void setUsername(String username) {
        this.username = username;
    }

    @Override
    public int hashCode() {
        int hash = 0;
        hash += (id != null ? id.hashCode() : 0);
        return hash;
    }

    @Override
    public boolean equals(Object object) {
        // TODO: Warning - this method won't work in the case the id fields are not set
        if (!(object instanceof Prints)) {
            return false;
        }
        Prints other = (Prints) object;
        if ((this.id == null && other.id != null) || (this.id != null && !this.id.equals(other.id))) {
            return false;
        }
        return true;
    }

    @Override
    public String toString() {
        return "entities.Prints[ id=" + id + " ]";
    }

}

为什么我在组合框中没有post方法？

控制器代码Java EE 6

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package service;

import entities.Prints;
import java.util.List;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.ws.rs.Consumes;
import javax.ws.rs.DELETE;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.PUT;
import javax.ws.rs.Path;
import javax.ws.rs.PathParam;
import javax.ws.rs.Produces;
import org.netbeans.saas.RestResponse;
import org.netbeans.saas.google.GoogleMapService;

/**
 *
 * @author subhi
 */
@Stateless
@Path("entities.prints")
public class PrintsFacadeREST extends AbstractFacade<Prints> {

    @PersistenceContext(unitName = "test3PU")
    private EntityManager em;

    public PrintsFacadeREST() {
        super(Prints.class);
    }

    @POST
    @Override
    @Consumes({"application/xml", "application/json"})
    public void create(Prints entity) {
        super.create(entity);
    }

    @PUT
    @Override
    @Consumes({"application/xml", "application/json"})
    public void edit(Prints entity) {
        super.edit(entity);
    }

    @DELETE
    @Path("{id}")
    public void remove(@PathParam("id") Integer id) {
        super.remove(super.find(id));
    }

    @GET
    @Path("{id}")
    @Produces({"application/xml", "application/json"})
    public Prints find(@PathParam("id") Integer id) {
        return super.find(id);
    }

    @GET
    @Override
    @Produces({"application/xml", "application/json"})
    public List<Prints> findAll() {
        return super.findAll();
    }

    @GET
    @Path("{from}/{to}")
    @Produces({"application/xml", "application/json"})
    public List<Prints> findRange(@PathParam("from") Integer from, @PathParam("to") Integer to) {
        return super.findRange(new int[]{from, to});
    }

    @GET
    @Path("count")
    @Produces("text/plain")
    public String countREST() {
        return String.valueOf(super.count());
    }

    @Override
    protected EntityManager getEntityManager() {
        return em;
    }

    @GET
    @Produces("text/html")
    public String getGoogleMap() {
// Drag and drop the getGoogleMap operation here

        try {
            String address = "16 Network Circle, Menlo Park";
            java.lang.Integer zoom = 15;
            String iframe = "false";

            RestResponse result = GoogleMapService.getGoogleMap(address, zoom, iframe);
            return result.getDataAsString();
        } catch (Exception ex) {
            ex.printStackTrace();
        }

        return "";
    }
}

Answer 1

把请求体部分放在那里。如果你要更新某个实体，那么你应该把应该更新的数据传递给dto。我没有看过你的链接。这部分可以是Json或XML。（如下所示）

 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<prints>
<id>1</id>
<username>test</username>
</prints>

您必须如下所示对dto字母进行注释，例如printsDTO

@XmlRootElement(name = "prints") 
public class PrintsDTO {
private int id;
private String username;
// have getters and setteres for above
}