Question

我想在java中构建一个Web应用程序，但找不到将我的html链接到java的方法

Answer 1

您可以使用response.sendRedirect：

response.sendRedirect("localhost/yourlink");

或：

response.sendRedirect("http://stackoverflow.com");

Answer 2

您可以将表单放到您的html页面并为其提供serlet url模式，如下所示：

//drawing hexagons

var grid;
var numColumns;
var numRows;
var radius;
var diameter;

var pallet = {123, 244, 321, 342, 783};

function setup(){
  var createCanvas(1440, 900);

  canvas.parent("sketch-holder");

  canvas.id("background-canvas");

  smooth();

  radius = 15;
  diameter = radius * 2;

  numColumns = width / (sqrt(3) * radius) + 1;
  numRows = height / (.75 * diameter) + 1;

  grid = new Grid(numColumns, numRows, radius);

  for(var i = 0; i < numColumns; i++){
    for(var j = 0; j < numRows; j++){
      var/*Hexagon*/ selected = grid.getHexagon(i, j);
      selected.setFillColor(pallet[random(5)]);
    }
  }

  grid.draw();

  frameRate(60);
}

function draw(){
  grid.draw();

  for(var i = 0; i < 15; i++){
    var/*Hexagon*/ selected = grid.getHexagon(random(numColumns), random(numRows));
    selected.setFillColor(pallet[random(5)]);
  }
}

class Hexagon{
  var c;

  var r;
  var x;
  var y;

  var angle = TWO_PI / 6;
  var startAngle = PI / 6;

  constructor(center, radius){
    this.r = radius;
    this.x = center[0];
    this.y = center[1];
  }

  function draw(){
    //noStroke();
    fill(c);

    vertY = new Array(6);
    vertX = new Array(6);

    for(var i = 0; i < 6; i++){
      angleRad = (angle * i) + startAngle;
      vertX[i] = x + (r * cos(angleRad));
      vertY[i] = y + (r * sin(angleRad));
    }
    beginShape();
    vertex(vertX[0], vertY[0]);
    vertex(vertX[1], vertY[1]);
    vertex(vertX[2], vertY[2]);
    vertex(vertX[3], vertY[3]);
    vertex(vertX[4], vertY[4]);
    vertex(vertX[5], vertY[5]);
    endShape(CLOSE);
  }

  function setFillColor(color setColor){
  c = setColor;
  }
}

class Grid{

  var columns;
  var rows;
  var r;
  var hexagons = new Array[][];

  constructor(numColumns, numRows, radius){

    this.columns = numColumns;
    this.rows = numRows;
    this.r = radius;

     var hexagons = new Array[columns][rows];

     var center = {0, 0};

    for(var i = 0; i < rows; i++){
      for(var j = 0; j < columns; j++){
        hexagons[j][i] = new Hexagon(center, r);
        center[0] += (r * sqrt(3));
      }
      center[1] += (r * 3) / 2;
      if(i % 2 == 0){
        center[0] = (sqrt(3) / 2) * r;
      }else{
        center[0] = 0;
      }
    }
  }

  function draw(){
    for(var i = 0; i < rows; i++){
      for(var j = 0; j < columns; j++){
        hexagons[j][i].draw();
      }
    }
  }

  function getHexagon(column, row){
    return hexagons[column][row];
  }
}

服务器端web.xml

<form action="/servlet_url_pattren">
...
</form>

如何将HTML页面链接到Java Servlet？

2 个答案: