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README
Apache-2.0
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ECharts Java

"We bring better visualization into Java with ECharts"

Github Actions Status Contributions welcome License Maven Central

English README

官方文档

📙 简介

ECharts Java 是一款基于 Apache ECharts 的,简易但全面的数据可视化库。(现支持 Apache ECharts 5.x 版本)。

论简易性,ECharts Java 重新设计了一系列和绘图有关的接口,使得绘图过程更加符合直觉和常理。同时,由于 Apache ECharts 的接口过于复杂和繁琐,我们在 ECharts Java 的图表 API 中简化了部分原本的接口设计。

论全面,ECharts Java 保留了 Apache ECharts “一切皆 Option”的设计理念。因此,除了重新设计的图表 API 以外,我们还保留了自定义 Option 对象的方法。用户可以从零开始,按照 ECharts 的 Option 文档,自定义任何 ECharts 支持的 Option。除此以外,我们还使用链式方法调用等方式,使得 Java 开发者在构建 Option 的过程中更加方便。

🌠 特性

  • 简单、整洁、高度组织化的 API 接口,支持链式调用
  • 完整保存 Apache ECharts 的功能
  • 快速集成至当前流行的 Web 框架
  • 灵活的导出格式,支持 HTML,PNG 和 JSON
  • 完整、详细的文档和示例库

🔬 安装

Maven 项目:

// pom.xml
<dependency>
  <groupId>org.icepear.echarts</groupId>
  <artifactId>echarts-java</artifactId>
  <version>1.1.0</version>
</dependency>

Gradle 项目:

implementation 'org.icepear.echarts:echarts-java:1.1.0'

如果你使用的是其他项目,请参阅这里

🔭 使用

生成 HTML 和下载图片

public static void main(String[] args) {
// All methods in EChart Java supports method chaining
    Bar bar = new Bar()
              .setLegend()
              .setTooltip("item")
              .addXAxis(new String[] { "Matcha Latte", "Milk Tea", "Cheese Cocoa", "Walnut Brownie" })
              .addYAxis()
              .addSeries("2015", new Number[] { 43.3, 83.1, 86.4, 72.4 })
              .addSeries("2016", new Number[] { 85.8, 73.4, 65.2, 53.9 })
              .addSeries("2017", new Number[] { 93.7, 55.1, 82.5, 39.1 });
    Engine engine = new Engine();
    // The render method will generate our EChart into a HTML file saved locally in the current directory.
    // The name of the HTML can also be set by the first parameter of the function.
    engine.render("index.html", bar);
}
multi-bar-render

生成 Option 对象和对应的 JSON 结构

public static void main(String[] args) {
    Line lineChart = new Line()
                .addXAxis(new CategoryAxis()
                        .setData(new String[] { "Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun" })
                        .setBoundaryGap(false))
                .addYAxis()
                .addSeries(new LineSeries()
                        .setData(new Number[] { 820, 932, 901, 934, 1290, 1330, 1320 })
                        .setAreaStyle(new LineAreaStyle()));
    Engine engine = new Engine();
    // It is recommended that you can  get the serialized version of Option in the representation of JSON, which can be used directly in the template or in the RESTful APIs.
    String jsonStr = engine.renderJsonOption(lineChart);
}

生成的 JSON 对象如下:

{
  "xAxis": [
    {
      "type": "category",
      "data": ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"],
      "boundaryGap": false
    }
  ],
  "yAxis": [{ "type": "value" }],
  "series": [
    {
      "type": "line",
      "data": [820, 932, 901, 934, 1290, 1330, 1320],
      "areaStyle": {}
    }
  ]
}

扩展

我们最近添加了保存图片的功能。支持导出png, jpg或者base64流的功能。 请参考 ECharts Java Snapshot PhatomJS

集成至 Spring Boot 应用

spring-boot-integration

详细内容请参阅,文档代码仓库

🎇 示例

💡 作者

欢迎大家积极提 issue,fork,和其他贡献!

💌 鸣谢

🎈 开源协议

本项目遵循 Apache License 2.0 开源协议。

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