java - 如何使用 Unirest 将数据从 Vaadin 发布到 Vertx？

Question

我目前在我的 Vaadin 页面上有一个 Canvas 来绘制边界框，在其中它们将作为对象保存到一个包含它们的宽度、高度、坐标等的数组中。我还有一个可以执行 GET 和 POST 的 Vertx 后端来 self 的 MariaDB 数据库(使用 JDBC)的请求应该包含来自 Vaadin 前端的所有边界框对象(但它们现在只包含示例创建的对象)。我想知道如何使用 Unirest 在 Vaadin 前端正确编写 POST 请求，以便我可以使用“保存”按钮将我的对象从 Vaadin 传递到 Vertx，因为我现在在 UserService.java 中的当前代码是'什么都不做。

Vaadin UserService.java:

package com.vaadin.starter.beveragebuddy.service;

import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.JsonNode;
import com.mashape.unirest.http.Unirest;
import com.mashape.unirest.http.exceptions.UnirestException;
import com.vaadin.starter.beveragebuddy.ui.components.BoundingBox;
import com.vaadin.starter.beveragebuddy.ui.components.Canvas;
import org.json.JSONArray;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;

import static com.helger.commons.mock.CommonsAssert.assertEquals;
//import static com.sun.xml.internal.ws.spi.db.BindingContextFactory.LOGGER;

public class UserService {

    public JSONArray bbJsonArray;
    public JSONObject bbJsonObject;
    public static ArrayList<BoundingBox> bb = Canvas.getArrayBoxes();

    public static String createAnnotations(String boxname) throws UnirestException {

        Map<String, String> headers = new HashMap<>();

            try {

                HttpResponse<JsonNode> jsonResponse = Unirest.post("http://localhost:9080/api/annotations")
                        .header("accept", "application/json")
                        .field("boxname", bb.get(0).boxname)
                        .asJson();

                JSONObject output = jsonResponse.getBody().getObject();

                String status = output.getString("status");
                System.out.println(jsonResponse.getBody());
                return status;

            } catch (UnirestException e) {
                return "error";
            }
        }

}

Vaadin BoundingBox.java:

package com.vaadin.starter.beveragebuddy.ui.components;

import org.json.JSONObject;

public class BoundingBox {

    public double xcoordi = 0;
    public double ycoordi = 0;
    public double boxWidth = 0;
    public double boxHeight = 0;
    public double endX = 0;
    public double endY = 0;
    public String picID;
    public String boxname;
    public String boxcategory;
    public String boxcolour;

    public BoundingBox(String picID, String boxname, String boxcategory, String boxcolour, double xcoordi, double ycoordi, double boxWidth, double boxHeight, double endX, double endY) {
        this.picID = picID;
        this.boxname = boxname;
        this.boxcategory = boxcategory;
        this.boxcolour = boxcolour;
        this.xcoordi = xcoordi;
        this.ycoordi = ycoordi;
        this.boxWidth = boxWidth;
        this.boxHeight = boxHeight;
        this.endX = endX;
        this.endY = endY;
    }

    public String getPicID() {
        return picID;
    }

    public void setPicID(String picID) {
        this.picID = picID;
    }

    public String getBoxName() {
        return boxname;
    }

    public void setName(String boxname) {
        this.boxname = boxname;
    }

    public String getBoxcategory() {
        return boxcategory;
    }

    public void setBoxcategory(String boxcategory) {
        this.boxcategory = boxcategory;
    }

    public String getBoxcolour() {
        return boxcolour;
    }

    public void setBoxcolour(String boxcolour) {
        this.boxcolour = boxcolour;
    }

    public double getXcoordi() {
        return xcoordi;
    }

    public void setXcoordi(double xcoordi) {
        this.xcoordi = xcoordi;
    }

    public double getYcoordi() {
        return ycoordi;
    }

    public void setYcoordi(double ycoordi) {
        this.ycoordi = ycoordi;
    }

    public double getWidth() {
        return boxWidth;
    }

    public void setWidth(double endX, double xcoordi) {
        boxWidth = endX - xcoordi;
    }

    public double getHeight() {
        return boxHeight;
    }

    public void setHeight(double endY, double ycoordi) {
        boxHeight = endY - ycoordi;
    }

    public double getEndX() {  // Bottom-right X coordinate of box
        return endX;
    }

    public void setEndX(double endX) {
        this.endX = endX;
    }

    public double getEndY() {  // // Bottom-right Y coordinate of box
        return endY;
    }

    public void setEndY(double endY) {
        this.endY = endY;
    }

    public JSONObject toJSON() {

        JSONObject bbJsonObject = new JSONObject();
        bbJsonObject.put("boxname", boxname);
        bbJsonObject.put("boxcategory", boxcategory);
        bbJsonObject.put("boxcolour", boxcolour);
        bbJsonObject.put("xcoordi", xcoordi);
        bbJsonObject.put("ycoordi", ycoordi);
        bbJsonObject.put("boxwidth", boxWidth);
        bbJsonObject.put("boxheight", boxHeight);

        return bbJsonObject;
    }

    @Override
    public String toString() {
        return "{" +
                "Name=" + boxname +
                ", Class=" + boxcategory +
                ", Colour=" + boxcolour +
                ", X=" + xcoordi +
                ", Y=" + ycoordi +
                ", Width=" + boxWidth +
                ", Height=" + boxHeight +
                '}';
    }
}

顶点 MainVerticle.java:

import io.vertx.core.AsyncResult;
import io.vertx.core.Future;
import io.vertx.core.Handler;
import io.vertx.core.http.HttpServer;
import io.vertx.core.http.HttpServerResponse;
import io.vertx.core.json.Json;
import io.vertx.core.json.JsonArray;
import io.vertx.core.json.JsonObject;
import io.vertx.ext.jdbc.JDBCClient;
import io.vertx.ext.sql.ResultSet;
import io.vertx.ext.sql.SQLClient;
import io.vertx.ext.web.Router;
import io.vertx.ext.web.RoutingContext;
import io.vertx.ext.web.handler.StaticHandler;
import io.vertx.ext.jdbc.JDBCClient;
import io.vertx.ext.sql.SQLConnection;
import io.vertx.ext.sql.UpdateResult;
import io.vertx.ext.web.handler.BodyHandler;
import io.vertx.ext.web.handler.StaticHandler;
import io.vertx.starter.components.BoundingBox;
import io.vertx.starter.components.Picture;


import java.sql.Statement;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class MainVerticle extends AbstractVerticle {

  private JDBCClient jdbc;
  private static final Logger LOGGER = LoggerFactory.getLogger(MainVerticle.class);
  private Future fut;
  private String SQL_GET_ANNOTATION = "SELECT * FROM boundingboxes";
  private String SQL_ADD_ANNOTATION = "INSERT INTO boundingboxes (picID, boxname, boxcategory, boxcolour, xcoordi, ycoordi, boxWidth, boxHeight, endX, endY) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
  private int nextCount = 0;
  private Map<Integer, Picture> pictures = new LinkedHashMap<>();
  private Map<Integer, BoundingBox> annotations = new LinkedHashMap<>();

  @Override
  public void start(Future<Void> fut) {

    createBBData();

    startHttpServer();

    dbConnection();

//    Router router = Router.router(vertx);
  }

public Future<Void> dbConnection(){

        // Create a JDBC client
    jdbc = JDBCClient.createShared(vertx, new JsonObject()
      .put("url", "jdbc:mariadb://localhost:3306/annotationdb")
      .put("driver_name", "org.mariadb.jdbc.Driver")
      .put("max_pool_size", 5)
      .put("user", "root"));

    jdbc.getConnection(ar -> {
      if (ar.failed()) {
        LOGGER.error("Could not open a database connection", ar.cause());
        fut.fail(ar.cause());         // If SQL Connection could not be obtained, then method future is completed to fail.
      } else {
        SQLConnection connection = ar.result(); // else ... SQL connection is established with successful AsyncResult (Use this connection to perform a SQL query)
        connection.query(SQL_GET_ANNOTATION, get -> {
          connection.close();
          if (get.failed()) {            // If SQL Query fails ...
            LOGGER.error("Database operation error", get.cause());  // ...
            fut.fail(get.cause());

          } else {
            LOGGER.info("Connection Established");
//            fut.complete();   // Complete method future object with a success
            System.out.print("Succeed");

            ResultSet rs = get.result();
            if (rs.getNumRows() > 0) {
              System.out.println(rs.getResults().toString());
              nextCount++;
            }
          }
        });
      }
    });
    return fut;
  }

  public Future<Void> startHttpServer(){
    Future<Void> future = Future.future();
    HttpServer server = vertx.createHttpServer();

    Router router = Router.router(vertx);
    router.route("/").handler(routingContext -> {
      HttpServerResponse response = routingContext.response();
      response
        .putHeader("content-type", "text/html")
        .end("<h1>Hello from my first Vert.x 3 application</h1>");
    });

    // Serve static resources from the /assets directory
    router.route("/assets/*").handler(StaticHandler.create("assets"));
    router.route("/api/annotations*").handler(BodyHandler.create());
    router.get("/api/annotations").handler(this::getAll);
//    router.get("/api/annotations/:bbID").handler(this::getOne);
    router.post("/api/annotations").handler(this::addOne);
    router.put("/api/annotations/:bbID").handler(this::updateOne);
    router.delete("/api/annotations/:bbID").handler(this::deleteOne);

    vertx
      .createHttpServer()
      .requestHandler(router::accept)
      .listen(
        // Retrieve the port from the configuration,
        // default to 8080.
        config().getInteger("http.port", 9080)
      );

    return future;

  }

private void createBBData() {
    BoundingBox annotation1 = new BoundingBox("P1", "sign1", "signs", "Magenta", 340.0, 110.0, 100.0, 200.0, 500.0, 400.0);
    annotations.put(annotation1.getBbID(), annotation1);
    BoundingBox annotation2 = new BoundingBox("P2", "woman1", "people", "Red", 300.0, 150.0, 200.0, 400.0, 600.0, 350.0);
    annotations.put(annotation2.getBbID(), annotation2);
  }

  private void getAll(RoutingContext routingContext) {
    jdbc.getConnection(ar -> {
      SQLConnection connection = ar.result();
      connection.query("SELECT * FROM boundingboxes", result -> {
        System.out.println("[GetALL] NUMBER = " + result.result().getNumRows());
        LOGGER.info("LOGGER INFO TEST!!");
        LOGGER.error("LOGGER ERROR TEST!!");
//        System.out.println("[GetALL] CONTENTS = " + result.result().getResults().get(0).encodePrettily());

        List<BoundingBox> annotation = result.result().getRows().stream().map(BoundingBox::new).collect(Collectors.toList());
        routingContext.response()
          .putHeader("content-type", "application/json; charset=utf-8")
          .end(Json.encodePrettily(annotation));
        connection.close();
      });
    });
  }

  private void addOne(RoutingContext routingContext) {  // OK
    jdbc.getConnection(ar -> {
      System.out.println("CONNECTION INSERT OK");

    final BoundingBox annotation = Json.decodeValue(routingContext.getBodyAsString(),
      BoundingBox.class);
    System.out.println(annotation.getEndX());
    SQLConnection connection = ar.result();
//    annotations.put(annotation.getBbID(), annotation);
    insert(annotation, connection, (r) ->

      routingContext.response()
      .setStatusCode(201)
      .putHeader("content-type", "application/json; charset=utf-8")
      .end(Json.encodePrettily(r.result())));
      connection.close();
    });
  }

  private void updateOne(RoutingContext routingContext) {
    final String bbID = routingContext.request().getParam("bbID");
    JsonObject json = routingContext.getBodyAsJson();
    if (bbID == null || json == null) {
      routingContext.response().setStatusCode(400).end();
    } else {
      jdbc.getConnection(ar ->
        update(bbID, json, ar.result(), (annotation) -> {
          if (annotation.failed()) {
            routingContext.response().setStatusCode(404).end();
          } else {
            routingContext.response()
              .putHeader("content-type", "application/json; charset=utf-8")
              .end(Json.encodePrettily(annotation.result()));
          }
          ar.result().close();
        })
      );
    }
  }

private void select(String bbID, SQLConnection connection, Handler<AsyncResult<BoundingBox>> resultHandler) {
    System.out.println("[TEST]  SELECT ONE REQUEST !!!");
    connection.queryWithParams("SELECT * FROM boundingboxes", new JsonArray().add(bbID), ar -> {
      if (ar.failed()) {
        resultHandler.handle(Future.failedFuture("Annotation not found"));
      } else {
        if (ar.result().getNumRows() >= 1) {
          System.out.println(ar.result().getResults().get(0).encodePrettily());
          System.out.println(ar.result().getRows().get(0).fieldNames());
          System.out.println(ar.result().getRows().get(0).encodePrettily());

          resultHandler.handle(Future.succeededFuture(new BoundingBox(ar.result().getRows().get(0))));
        } else {
          System.out.println("Annotation is not found!");
          resultHandler.handle(Future.failedFuture("Annotation not found"));
        }
      }
    });
  }

    private void insert(BoundingBox annotation, SQLConnection connection, Handler<AsyncResult<BoundingBox>> next) { // OK
      String sql = "INSERT INTO boundingboxes (picID, boxname, boxcategory, boxcolour, xcoordi, ycoordi, boxWidth, boxHeight, endX, endY) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)";
      JsonArray annotationJson = new JsonArray().add(annotation.getPicID()).add(annotation.getBoxName()).add(annotation.getBoxcategory()).add(annotation.getBoxcolour()).add(annotation.getXcoordi()).add(annotation.getYcoordi()).add(annotation.getWidth()).add(annotation.getHeight()).add(annotation.getEndX()).add(annotation.getEndX());
//      System.out.println(annotationJson);
      connection.updateWithParams(sql, annotationJson,
        (ar) -> {
          if (ar.failed()) {
            next.handle(Future.failedFuture(ar.cause()));
            connection.close();
            return;
          }
          UpdateResult result = ar.result();
          BoundingBox bb = new BoundingBox(result.getKeys().getInteger(0), annotation.getPicID(), annotation.getBoxName(), annotation.getBoxcategory(), annotation.getBoxcolour(), annotation.getXcoordi(), annotation.getYcoordi(), annotation.getWidth(), annotation.getHeight(), annotation.getEndX(), annotation.getEndY());
          System.out.println(bb);
          next.handle(Future.succeededFuture(bb));
        });
    }

  private void update(String bbID, JsonObject content, SQLConnection connection,
                      Handler<AsyncResult<BoundingBox>> resultHandler) {
    String sql = "UPDATE boundingboxes SET picID=?, boxname=?, boxcategory=?, boxcolour=?, xcoordi=?, ycoordi=?, boxWidth=?, boxHeight=?, endX=?, endY=? WHERE bbID=?";
    connection.updateWithParams(sql,
      new JsonArray().add(content.getString("picID")).add(content.getString("boxname")).add(content.getString("boxcategory")).add(content.getString("boxcolour")).add(content.getDouble("xcoordi")).add(content.getDouble("ycoordi")).add(content.getDouble("boxWidth")).add(content.getDouble("boxHeight")).add(content.getDouble("endX")).add(content.getDouble("endY")).add(bbID),
      update -> {
        if (update.failed()) {
          resultHandler.handle(Future.failedFuture("Cannot update the annotation"));
          return;
        }
        if (update.result().getUpdated() == 0) {
          resultHandler.handle(Future.failedFuture("Annotation not found"));
          return;
        }
        resultHandler.handle(
          Future.succeededFuture(new BoundingBox(Integer.valueOf(bbID),
            content.getString("picID"), content.getString("boxname"), content.getString("boxcategory"), content.getString("boxcolour"), content.getDouble("xcoordi"), content.getDouble("ycoordi"), content.getDouble("boxWidth"), content.getDouble("boxHeight"), content.getDouble("endX"), content.getDouble("endY"))));
      });
  }

}

顶点index.html:

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>List of Annotations</title>

  <script src="//code.jquery.com/jquery-1.11.3.min.js"></script>
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container" role="main">
  <div class="jumbotron">
    <h1>List of Annotations</h1>

    <p>Just an example of simple CRUD application developed using Vert.x and Vertx Web.</p>
  </div>
  <div class="page-header">
    <h1>Annotations</h1>
    <button class="pull-right btn btn-primary annotation-add" data-action="add" data-toggle="modal"
            data-target="#annotationModal">
      <span class="glyphicon glyphicon-plus"></span> Add a new annotation
    </button>
    <div class="row">
      <div class="col-md-12">
        <table class="table table-striped">
          <thead>
          <tr>
            <th>bbID</th>
            <th>picID</th>
            <th>Box Name</th>
            <th>Box Category</th>
            <th>Box Colour</th>
            <th>X-Coordi</th>
            <th>Y-Coordi</th>
            <th>Box Width</th>
            <th>Box Height</th>
            <th>End X</th>
            <th>End Y</th>
            <th></th>
          </tr>
          </thead>
          <tbody id="content">
          <!-- filled using Ajax -->
          </tbody>
        </table>
      </div>
    </div>
  </div>
</div>
<script>
    $(function () {
        load();
        initModal();
    });
    function create(picID, boxname, boxcategory, boxcolour, xcoordi, ycoordi, boxWidth, boxHeight, endX, endY) {
        $.post("/api/annotations", JSON.stringify({picID: picID, boxname: boxname, boxcategory: boxcategory, boxcolour: boxcolour, xcoordi: xcoordi, ycoordi: ycoordi, boxWidth: boxWidth, boxHeight: boxHeight, endX: endX, endY: endY}), function () {
            load();
        }, "json");
    }
    function remove(bbID) {
        $.ajax({
            method: "DELETE",
            url: "/api/annotations/" + bbID
        }).done(function () {
            load();
        });
    }
    function update(bbID, picID, boxname, boxcategory, boxcolour, xcoordi, ycoordi, boxWidth, boxHeight, endX, endY) {
        $.ajax({
            method: "PUT",
            url: "/api/annotations/" + bbID,
            data: JSON.stringify({picID: picID, boxname: boxname, boxcategory: boxcategory, boxcolour: boxcolour, xcoordi: xcoordi, ycoordi: ycoordi, boxWidth: boxWidth, boxHeight: boxHeight, endX: endX, endY: endY})
        }).done(function () {
            load();
        });
    }
    function load() {
        $("#content").children().remove();
        $.getJSON("/api/annotations", function (data) {
            $.each(data, function (key, val) {
                $("<tr><td>" + val.bbID + "</td><td>" + val.picID + "</td><td>" + val.boxname + "</td><td>" + val.boxcategory + "</td><td>" + val.boxcolour + "</td><td>" + val.xcoordi + "</td><td>" + val.ycoordi + "</td><td>" + val.boxWidth + "</td><td>" + val.boxHeight + "</td><td>" + val.endX + "</td><td>" + val.endY + "</td>" +
                        "<td>" +
                        "<button data-action='edit' class='btn btn-primary btn-sm annotation-edit' " +
                        "data-toggle='modal' " +
                        "data-target='#annotationModal' " +
                        "data-bbID='" + val.bbID + "' " +
                        "data-boxname='" + val.boxname + "' " +
                        "data-boxcategory='" + val.boxcategory + "' " +
                        "data-boxcolour='" + val.boxcolour + "'>" +
                        <!--"data-xcoordi='" + val.xcoordi + "'>" +-->
                        <!--"data-ycoordi='" + val.ycoordi + "'>" +-->
                        <!--"data-boxWidth='" + val.boxWidth + "'>" +-->
                        <!--"data-boxHeight='" + val.boxHeight + "'>" +-->
                        <!--"data-endX='" + val.endX + "'>" +-->
                        <!--"data-endY='" + val.endY + "'>" +-->
                        "<span class='glyphicon glyphicon-pencil'></span>" +
                        "</button>" +
                        "&nbsp;" +
                        "<button class='btn btn-danger btn-sm annotation-delete' data-bbID='" + val.bbID + "'>" +
                        "   <span class='glyphicon glyphicon-minus'></span>" +
                        "</button>" +
                        "</td>" +
                        "</tr>").appendTo("#content");
            });
            initCallbacks();
        });
    }
    function initCallbacks() {
        $(".annotation-delete").unbind().click(function() {
           var bbID = $(this).data("bbID");
           remove(bbID);
        });
    }
    function initModal() {
        $("#annotationModal").on('show.bs.modal', function (event) {
            var button = $(event.relatedTarget);
            var action = button.data('action');
            var bbID = button.data('bbID');
            var annotationAction = $("#annotationAction");
            annotationAction.unbind();
            var modal = $(this);
            if (action === "add") {
                modal.find('.modal-title').text("Add an annotation");
                modal.find('#annotation-picID').val("");
                modal.find('#annotation-boxname').val("");
                modal.find('#annotation-boxcategory').val("");
                modal.find('#annotation-boxcolour').val("");
                modal.find('#annotation-xcoordi').val("");
                modal.find('#annotation-ycoordi').val("");
                modal.find('#annotation-boxWidth').val("");
                modal.find('#annotation-boxHeight').val("");
                modal.find('#annotation-endX').val("");
                modal.find('#annotation-endY').val("");
                annotationAction.click(function () {
                    create($("#annotation-picID").val(), $("#annotation-boxname").val(), $("#annotation-boxcategory").val(), $("#annotation-boxcolour").val(), $("#annotation-xcoordi").val(), $("#annotation-ycoordi").val(), $("#annotation-boxWidth").val(), $("#annotation-boxHeight").val(), $("#annotation-endX").val(), $("#annotation-endY").val());
                    $('#annotationModal').modal('toggle');
                });
            } else {
                modal.find('.modal-title').text("Edit an annotation");
                modal.find('#annotation-picID').val(button.data("picID"));
                modal.find('#annotation-boxname').val(button.data("boxname"));
                modal.find('#annotation-boxcategory').val(button.data("boxcategory"));
                modal.find('#annotation-boxcolour').val(button.data("boxcolour"));
                modal.find('#annotation-xcoordi').val(button.data("xcoordi"));
                modal.find('#annotation-ycoordi').val(button.data("ycoordi"));
                modal.find('#annotation-boxWidth').val(button.data("boxWidth"));
                modal.find('#annotation-boxHeight').val(button.data("boxHeight"));
                modal.find('#annotation-endX').val(button.data("endX"));
                modal.find('#annotation-endY').val(button.data("endY"));
                annotationAction.click(function () {
                    update(id, $("#annotation-picID").val(), $("#annotation-boxname").val(), $("#annotation-boxcategory").val(), $("#annotation-boxcolour").val(), $("#annotation-xcoordi").val(), $("#annotation-ycoordi").val(), $("#annotation-boxWidth").val(), $("#annotation-boxHeight").val(), $("#annotation-endX").val(), $("#annotation-endY").val());
                    $('#annotationModal').modal('toggle');
                });
            }
        })
    }
</script>
<div class="modal fade" id="annotationModal" tabindex="-1" role="dialog">
  <div class="modal-dialog" role="dialog">
    <div class="modal-content">
      <div class="modal-header">
        <button type="button" class="close" data-dismiss="modal"><span>&times;</span></button>
        <h4 class="modal-title" id="annotationModalTitle">Add an annotation</h4>
      </div>
      <div class="modal-body">
        <form>
          <div class="form-group">
            <label for="annotation-picID" class="control-label">Pic ID:</label>
            <input type="text" class="form-control" id="annotation-picID">
          </div>
          <div class="form-group">
            <label for="annotation-boxname" class="control-label">Box Name:</label>
            <input type="text" class="form-control" id="annotation-boxname">
          </div>
          <div class="form-group">
            <label for="annotation-boxcategory" class="control-label">Box Category:</label>
            <input type="text" class="form-control" id="annotation-boxcategory">
          </div>
          <div class="form-group">
            <label for="annotation-boxcolour" class="control-label">Box Colour:</label>
            <input type="text" class="form-control" id="annotation-boxcolour">
          </div>
          <div class="form-group">
            <label for="annotation-xcoordi" class="control-label">X-Coordi:</label>
            <input type="text" class="form-control" id="annotation-xcoordi">
          </div>
          <div class="form-group">
            <label for="annotation-ycoordi" class="control-label">Y-Coordi:</label>
            <input type="text" class="form-control" id="annotation-ycoordi">
          </div>
          <div class="form-group">
            <label for="annotation-boxWidth" class="control-label">Box Width:</label>
            <input type="text" class="form-control" id="annotation-boxWidth">
          </div>
          <div class="form-group">
            <label for="annotation-boxHeight" class="control-label">Box Height:</label>
            <input type="text" class="form-control" id="annotation-boxHeight">
          </div>
          <div class="form-group">
            <label for="annotation-endX" class="control-label">End X:</label>
            <input type="text" class="form-control" id="annotation-endX">
          </div>
          <div class="form-group">
            <label for="annotation-endY" class="control-label">End Y:</label>
            <input type="text" class="form-control" id="annotation-endY">
          </div>
        </form>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
        <button type="button" id="annotationAction" class="btn btn-primary">Save</button>
      </div>
    </div>
  </div>
</div>
</body>
</html>

感谢任何帮助，谢谢!

Answer 1

您不仅需要发送边界框的名称，还需要发送包含坐标等所有信息的整个对象，因此所有相关数据都可以存储在数据库中。仅发送和存储名称将使您一事无成。

这通常是使用 json 完成的。如果您愿意，可以自己构建 json，但是使用 ObjectMapper 将您的 BoundingBox 转换为 json 并返回更方便，特别是如果您还需要发送 BoundingBox 之外的其他对象。

这是一篇关于在 java 中使用 unirest 的好文章，并附有示例:https://www.baeldung.com/unirest .