RESTEasy使用json返回的例子

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1、创建一个json的model类：

User.java

package com.howtodoinjava.model;  import java.io.Serializable; import javax.xml.bind.annotation.XmlAccessType;import javax.xml.bind.annotation.XmlAccessorType;import javax.xml.bind.annotation.XmlAttribute;import javax.xml.bind.annotation.XmlElement;import javax.xml.bind.annotation.XmlRootElement;  @XmlAccessorType(XmlAccessType.NONE)@XmlRootElement(name = "user")public class User implements Serializable {      private static final long serialVersionUID = 1L;      @XmlAttribute(name = "id")    private int id;      @XmlElement(name = "firstName")    private String firstName;      @XmlElement(name = "lastName")    private String lastName;      public int getId() {        return id;    }    public void setId(int id) {        this.id = id;    }    public String getFirstName() {        return firstName;    }    public void setFirstName(String firstName) {        this.firstName = firstName;    }    public String getLastName() {        return lastName;    }    public void setLastName(String lastName) {        this.lastName = lastName;    }}

2、创建一个服务器回调类：

UserManagementModule.java

package com.howtodoinjava.service; import javax.ws.rs.GET;import javax.ws.rs.Path;import javax.ws.rs.PathParam;import javax.ws.rs.core.Response; import com.howtodoinjava.model.User; @Path("/user-management")public class UserManagementModule{    @GET    @Path("/users/{id}")    @Produces("application/json")    public Response getUserById(@PathParam("id") Integer id)    {        User user = new User();        user.setId(id);        user.setFirstName("Lokesh");        user.setLastName("Gupta");        return Response.status(200).entity(user).build();    }}

3、应用测试

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