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Eclipse 收集器找不到字段_Eclipse_Lambda_Java 8 - Fatal编程技术网

Eclipse 收集器找不到字段

Eclipse 收集器找不到字段,eclipse,lambda,java-8,Eclipse,Lambda,Java 8,我尝试使用lambda来平均一个字段与另一个分组字段。它失败了,说找不到现场价格。它确实可以毫无问题地找到tradeMinutes字段。这会让我相信它现在做的是正确的类 eclipse中的编译错误 Exception in thread "main" java.lang.Error: Unresolved compilation problem: price cannot be resolved or is not a field at com.simplegrowth.as

我尝试使用lambda来平均一个字段与另一个分组字段。它失败了,说找不到现场价格。它确实可以毫无问题地找到tradeMinutes字段。这会让我相信它现在做的是正确的类

eclipse中的编译错误

Exception in thread "main" java.lang.Error: Unresolved compilation problem: 
    price cannot be resolved or is not a field

    at com.simplegrowth.assets.AssetAdder.<init>(AssetAdder.java:60)
    at com.simplegrowth.Reader.<clinit>(Reader.java:23)
线程“main”java.lang中出现异常。错误:未解决的编译问题: 无法解析价格或价格不是字段 位于com.simplegrowth.assets.assetader.(assetader.java:60) 位于com.simplegrowth.Reader。(Reader.java:23) 组列表函数

        List<Asset> assetsList = null;

        assetsList = assets.get("BILL");
        assetsList.stream()
        .collect(Collectors.groupingBy( a -> a.tradeMinutesSinceMidnight, Collectors.averagingDouble( a -> a.price) ) )
        .forEach((  tradeMinutesSinceMidnight, sumPrice) -> System.out.println(tradeMinutesSinceMidnight + " " + sumPrice));
List assetsList=null;
assetsList=assets.get(“票据”);
assetsList.stream()
.collect(Collector.groupingBy(a->a.tradeMinutesSinceMidnight,Collector.averagingDouble(a->a.price)))
.forEach((tradeMinutesSinceMidnight,sumPrice)->System.out.println(tradeMinutesSinceMidnight+“”+sumPrice));
资产类别

public class Asset implements Serializable, Comparable<Asset> {

    private static final long serialVersionUID = 1L;

    @Id @GeneratedValue(strategy=GenerationType.IDENTITY)
    private Long id; // still set automatically

    public Long getId() {
        return id;
    }
    public void setId(Long id) {
        this.id = id;
    }
    long sequenceNo;
    String Exchange;
    String Board;
    long time;
    String paper;
    long tradeTime;
    long quantity;
    double price;
    String source;
    String buyer;
    String seller;
    float changeSinceLast;
    String initator;
    long tradeTimeSinceMidnight;
    long tradeMinutesSinceMidnight;
    long daysSinceEpoch;


    public long getSequenceNo() {
        return sequenceNo;
    }
    public void setSequenceNo(long sequenceNo) {
        this.sequenceNo = sequenceNo;
    }
    public String getExchange() {
        return Exchange;
    }
    public void setExchange(String exchange) {
        Exchange = exchange;
    }
    public String getBoard() {
        return Board;
    }
    public void setBoard(String board) {
        Board = board;
    }
    public long getTime() {
        return time;
    }
    public void setTime(long time) {
        this.time = time;
    }
    public String getPaper() {
        return paper;
    }
    public void setPaper(String paper) {
        this.paper = paper;
    }
    public long getTradeTime() {
        return tradeTime;
    }
    public void setTradeTime(long tradeTime) {
        this.tradeTime = tradeTime;
    }
    public long getQuantity() {
        return quantity;
    }
    public void setQuantity(long quantity) {
        this.quantity = quantity;
    }
    public double getPrice() {
        return price;
    }
    public void setPrice(double price) {
        this.price = price;
    }
    public String getSource() {
        return source;
    }
    public void setSource(String source) {
        this.source = source;
    }
    public String getBuyer() {
        return buyer;
    }
    public void setBuyer(String buyer) {
        this.buyer = buyer;
    }
    public String getSeller() {
        return seller;
    }
    public void setSeller(String seller) {
        this.seller = seller;
    }
    public float getChangeSinceLast() {
        return changeSinceLast;
    }
    public void setChangeSinceLast(float changeSinceLast) {
        this.changeSinceLast = changeSinceLast;
    }
    public String getInitator() {
        return initator;
    }
    public void setInitator(String initator) {
        this.initator = initator;
    }

    public long getDaysSinceEpoch() {
        return daysSinceEpoch;
    }
    public void setDaysSinceEpoch(long daysSinceEpoch) {
        this.daysSinceEpoch = daysSinceEpoch;
    }
    public long getTradeTimeSinceMidnight() {
        return tradeTimeSinceMidnight;
    }
    public void setTradeTimeSinceMidnight(long tradeTimeSinceMidnight) {
        this.tradeTimeSinceMidnight = tradeTimeSinceMidnight;
    }

    public long getTradeMinutesSinceMidnight() {
        return tradeMinutesSinceMidnight;
    }
    public void setTradeMinutesSinceMidnight(long tradeMinutesSinceMidnight) {
        this.tradeMinutesSinceMidnight = tradeMinutesSinceMidnight;
    }


    @Override
    public boolean equals(Object obj) {

        if (sequenceNo == ((Asset)obj).sequenceNo)
            return true;
        return false;

        //return super.equals(obj);
    }

    @Override
    public int compareTo(Asset otherAsset) {
        if (this.getSequenceNo() < otherAsset.getSequenceNo()) {
            return -1;
        }
        return 1;
    }

}
公共类资产实现了可序列化、可比较的{
私有静态最终长serialVersionUID=1L;
@Id@GeneratedValue(策略=GenerationType.IDENTITY)
private Long id;//仍然自动设置
公共长getId(){
返回id;
}
公共无效集合id(长id){
this.id=id;
}
长序列号;
字符串交换;
线板;
长时间;
线纸;
交易时间长;
数量多;
双倍价格;
字符串源;
弦乐买家;
线人;
漂浮物变化;
字符串启动器;
从午夜开始的漫长时间;
从午夜开始的漫长交易;
长日照期;
公共长getSequenceNo(){
返回序列号;
}
公共无效序列号(长序列号){
this.sequenceNo=sequenceNo;
}
公共字符串getExchange(){
换汇;
}
公共无效集合交换(字符串交换){
交换=交换;
}
公共字符串getBoard(){
返回板;
}
公共空隙立根板(线板){
董事会=董事会;
}
公共长getTime(){
返回时间;
}
公共无效设置时间(长时间){
这个时间=时间;
}
公共字符串getPaper(){
回执纸;
}
公共空白衬纸(线纸){
这张纸=纸;
}
公共长时间(){
返回时间;
}
公共无效设置交易时间(长交易时间){
this.tradeTime=交易时间;
}
公共长getQuantity(){
退货数量;
}
公共无效设置数量(长数量){
这个。数量=数量;
}
公开双价{
退货价格;
}
公共定价(双倍价格){
这个价格=价格;
}
公共字符串getSource(){
返回源;
}
公共void集合源(字符串源){
this.source=源;
}
公共字符串getBuyer(){
退货买家;
}
公共买方(字符串买方){
这个。买方=买方;
}
公共字符串getSeller(){
退货卖家;
}
公共无效设置卖方(字符串卖方){
this.seller=卖方;
}
公共浮点getChangeSinceLast(){
最后的回报变化;
}
公共无效设置更改最后一次(浮动更改最后一次){
this.changeSinceLast=changeSinceLast;
}
公共字符串getInitator(){
返回启动器;
}
公共void setInitator(字符串initator){
this.initator=initator;
}
公共长getDaysSinceEpoch(){
返回日期;返回时间;
}
公共无效setDaysSinceEpoch(长daysSinceEpoch){
this.daysSinceEpoch=daysSinceEpoch;
}
公共长getTradeTimeSinceMidnight(){
午夜返回;
}
public void setTradeTimeSinceMidnight(长tradeTimeSinceMidnight){
this.tradeTimeSinceMidnight=tradeTimeSinceMidnight;
}
公共long getTradeMinutesSinceMidnight(){
午夜后返回交易记录;
}
公共无效设置tradeMinutesSinceMidnight(长tradeMinutesSinceMidnight){
this.tradeMinutesSinceMidnight=tradeMinutesSinceMidnight;
}
@凌驾
公共布尔等于(对象obj){
if(sequenceNo==((资产)对象).sequenceNo)
返回true;
返回false;
//返回super.equals(obj);
}
@凌驾
公共整数比较(资产其他资产){
if(this.getSequenceNo()
它使用javac编译起来很好。您正在使用Eclipse吗?作为旁注,您的
compareTo
方法被破坏了。如果对象相等,则应返回
0
。而且您的
equals
方法并不复杂。只需说
returnsequenceno==((资产)obj)是的,我正在使用eclipse。因此,您可以尝试使用
收集器来帮助那个可怜的eclipse编译器。averagingDouble(a->a.price)
,或者等待更新……这样做了,非常好。不知道eclipse可能无法使用标准编译器