eCharts工具类
ECharts是一款基于JavaScript的数据可视化图表库,提供直观,生动,可交互,可个性化定制的数据可视化图表。ECharts最初由百度团队开源,并于2018年初捐赠给Apache基金会,成为ASF孵化级项目。
ECharts官方地址
Examples - Apache ECharts
ECharts,一个使用 JavaScript 实现的开源可视化库,可以流畅的运行在 PC 和移动设备上,兼容当前绝大部分浏览器(IE8/9/10/11,Chrome,Firefox,Safari等),底层依赖矢量图形库 ZRender,提供直观,交互丰富,可高度个性化定制的数据可视化图表。正在广泛的应用在互联网项目中。
柱状图、饼图实体类
@Data
public class Line<T extends Serializable> implements Serializable {
private static final long serialVersionUID = 855735354643061064L;
@ApiModelProperty("x名称")
private String xName;
@ApiModelProperty("x轴坐标")
private List<String> keys;
@ApiModelProperty("数据")
private List<LineData<T>> valList;
@ApiModelProperty("图例数据")
private List<String> legendData;
}
@Data
public class LineData<T extends Serializable> implements Serializable {
private static final long serialVersionUID = -184896191268244331L;
@ApiModelProperty("数据值")
private T[] vals;
@ApiModelProperty("数据单位")
private String dataUnit;
@ApiModelProperty("曲线的名称")
private String name;
@ApiModelProperty("y轴位置")
private int yIndex = 1;
}
@Data
public class Pie {
@ApiModelProperty("饼图标题")
private String text;
@ApiModelProperty("图例标签")
private List<String> legendData = new ArrayList();
@ApiModelProperty("图例数据")
private List<PieData> seriesData = new ArrayList();
}
柱状图、饼图实体类
public class GraphicUtils {
private GraphicUtils(){}
/**
* 返回单个图表结构的数据
*/
public static Line<BigDecimal> getLine(BigDecimal[] dataArray, List<String> keys, String name, String unit) {
Line<BigDecimal> line = new Line<>();
LineData<BigDecimal> lineData = new LineData<>();
List<LineData<BigDecimal>> valList = new ArrayList<>();
valList.add(lineData.setVals(dataArray).setName(name).setDataUnit(unit));
return line.setKeys(keys).setValList(valList);
}
/**
* 返回两个图表结构的数据
*/
public static Line<BigDecimal> getLine(List<String> keys, BigDecimal[] dataArray, BigDecimal[] dataArray2, String name, String name2,String unit) {
Line<BigDecimal> line = getLine(dataArray, keys, name, unit);
insertLineData(line,dataArray2,name2,unit);
return line;
}
/**
* 返回空图表结构的数据
*/
public static Line<BigDecimal> getEmptyLine(List<String> keys, String xName) {
Line<BigDecimal> line = new Line<>();
List<LineData<BigDecimal>> valList = new ArrayList<>();
return line.setKeys(keys).setValList(valList).setXName(xName);
}
/**
* 图表里面添加数据
*/
public static void insertLineData(Line<BigDecimal> histogramList, BigDecimal[] dataArray, String name,String dataUnit) {
List<LineData<BigDecimal>> valList = histogramList.getValList();
LineData<BigDecimal> lineData = new LineData<>();
valList.add(lineData.setVals(dataArray).setName(name).setDataUnit(dataUnit));
}
/**
* 饼图
*/
public static Pie getPie(String name, List<BigDecimal> resList, List<String> keyList) {
Pie pie = new Pie();
pie.setText(name);
List<PieData> seriesData = new ArrayList<>();
pie.setSeriesData(seriesData);
int length = resList.size() >= keyList.size() ? resList.size() : keyList.size();
for (int i = 0; i < length; i++) {
PieData direct = new PieData();
direct.setName(keyList.get(i));
direct.setValue(resList.get(i));
seriesData.add(direct);
}
return pie;
}
}