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如何在java中创建JSON解析脚本_Java_Json - Fatal编程技术网

如何在java中创建JSON解析脚本

如何在java中创建JSON解析脚本,java,json,Java,Json,我使用netbeans 8和ApacheTomcat 7,我需要在restful web服务中创建一个脚本,以便在web页面中生成结果,而不是restful测试web页面,这意味着解析。我怎么做?请帮帮我 这是连接类 package entities; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; im

我使用netbeans 8和ApacheTomcat 7,我需要在restful web服务中创建一个脚本,以便在web页面中生成结果,而不是restful测试web页面,这意味着解析。我怎么做?请帮帮我

这是连接类

package entities;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.*;



public class PatientCnx {
     public static Connection connection = null;
   public static PreparedStatement ptmt = null;
    public static ResultSet resultSet = null;


    private static Connection getConnection() throws SQLException {

        connection = ConnectionFactory.getInstance().getConnection();
        return connection;
    }

    public static List<Patient> findByPatientSexe(String c)  {



        String sql = ""
                + "SELECT * FROM patient WHERE sexe = ? ";
        Connection conn = null; 
         List<Patient> patientList =   new ArrayList<Patient>();
        try {
            connection = PatientCnx.getConnection();
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setString(1, c);
            ResultSet resultSet = ps.executeQuery();
            while(resultSet.next()) {
                Patient p = new Patient();
                p.setIdpatient(resultSet.getInt(1));
                p.setNom(resultSet.getString(2));
                p.setPrenom(resultSet.getString(4));
                patientList.add(p);


            }

            resultSet.close();

        } catch (SQLException e) {

            e.printStackTrace();
        } finally {
            if (conn != null) {
                try {
                    conn.close();
                } catch (SQLException e) {
                }
            }
        }
        return  patientList;

    }
}
这是netbeans在我创建RESTfull Web服务时创建的genericressource “@Pathgeneric 公共类通用资源{

@Context
private UriInfo context;

/**
 * Creates a new instance of GenericResource
 */
public GenericResource() {
}

/**
 * Retrieves representation of an instance of entities.GenericResource
 * @return an instance of java.lang.String
 */
@GET
@Produces("application/json")
public String getJson() {
    //TODO return proper representation object
    throw new UnsupportedOperationException();
}

/**
 * PUT method for updating or creating an instance of GenericResource
 * @param content representation for the resource
 * @return an HTTP response with content of the updated or created resource.
 */
@PUT
@Consumes("application/json")
public void putJson(String content) {
}
@GET
@Path("{Sexe}")
@Produces({ "application/json"})
public List<Patient> find(@PathParam("Sexe") String c) {
    List<Patient> p = PatientCnx.findByPatientSexe(c);
    if (p == null)
        return p;
    return p;
} }
`你可以上一节课。例如:

public class JsonParse {

    private static final String filePath = "jsonFile.json"; //your object URL

    public static void main(String[] args) {

        try {
            // read the json file
            FileReader reader = new FileReader(filePath);

            JSONParser jsonParser = new JSONParser();
            JSONObject jsonObject = (JSONObject) jsonParser.parse(reader);

            // get a String from the JSON object
            String name = (String) jsonObject.get("name");
            System.out.println("My name is " + name);
        }catch (FileNotFoundException ex) {
           ex.printStackTrace();
        }
    }
}

或者使用一些lib在rest中解析它。例如Jackson或Jersey

有许多用于JSON解析的lib。最受欢迎的似乎是杰克逊,最标准化的可能是JSR-353。有很多参赛者是最快的:我不得不承认我不理解你的示例代码和描述之间的联系。可能您不需要一个json解析器,但是一个完整的rest客户机呢?我在使用netbeans,我用genericRessource类创建了一个restfull web服务由netbeans自己创建我上面写的代码Continent sql请求我的问题是当我测试Restful web服务时,它给了我一个接口,我真正需要的是没有我想要的接口的结果像这样[{idpatient:21,nom:xxxx,prenom:xxxxx},{idpatient:19,nom:yyyyyy,prenom:yyyyyyyy}],或者使用一些libs在rest中解析它。例如Jackson或Jersey.|因此您可以使用更多示例:Jackson是JAVA的json转换器。jackson jax rs称之为Jersey的旧版本。