如何在变量中设置整个枚举列表，然后将其保存在 MongoDB 中

Question

我需要将 Enum 数据保存在 MongoDB 中，为此我能够获取 Enum 数据但不知道如何设置它。我在 POJO 中使用 Enum，需要将包含 Enum 的 POJO 保存在 MongoDB 中，为此使用 Gson。

import javax.annotation.Generated;

@Generated("org.jsonschema2pojo")
public class Coverage1 {
    public  enum Coverage {
Hearing_Aid_Professional_Liability("HEAR"), Incidental_Motorized_Land_Conveyances_Liability_Only("LANDC"), PremisesOperations_334("PREM"), Rental_Reimbursement("RREIM"), Liquor_Law_Liability_332("LLL"), Wind("WIND"), Business_Personal_Property("BPP"), OpticianOptometrists_Professional_Liability("OOPRL"), Builders_Risk("BLDRK"), Incidental_Farming_Personal_Liability("IFPL");

    private String val;

Coverage(String val){
        this.val = val;
    }

    public String getVal ()
    {
        return this.val;
    }

    public void setVal (String val)
    {
        this.val = val;
    }
}

    public Coverage value;
    public Coverage getValue() {
        return value;
    }

    public void setValue(Coverage value) {
        this.value = value;
    }

    private String id;

    private CoverageCd coverageCd;
    private CoverageDesc coverageDesc;
    private CoverageTypeCd coverageTypeCd;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id;
    }

   public CoverageCd getCoverageCd() {
        return coverageCd;
    }

    public void setCoverageCd(CoverageCd coverageCd) {
        this.coverageCd = coverageCd;
    }
   public CoverageDesc getCoverageDesc() {
        return coverageDesc;
    }

    public void setCoverageDesc(CoverageDesc coverageDesc) {
        this.coverageDesc = coverageDesc;
    }*
    public CoverageTypeCd getCoverageTypeCd() {
        return coverageTypeCd;
    }

     public void setCoverageTypeCd(CoverageTypeCd coverageTypeCd) {
        this.coverageTypeCd = coverageTypeCd;
    }

}

在另一个 class 中，我从需要将其保存在 Mongo 数据库中的地方调用它。

Coverage1 cv= new Coverage1();
            List<Coverage1.Coverage> ae= new ArrayList<Coverage1.Coverage>();
            for(Coverage1.Coverage enumval:Coverage1.Coverage.values()){
                //ae=enumval;
                System.out.println(enumval);
                cv.setValue(enumval);//I need to set the entire Enum data here, so that it could be saved in Mongo. But not getting how to save the entire data
            }
            cv.setId("1");
            Gson gson = new Gson();
            String json = gson.toJson(cv);
            System.out.println(json);
            // Parse to bson document and insert
           Document doc = Document.parse(json);
           db.getCollection("NameColl").insertOne(doc);

请有人帮助我如何将整个枚举数据保存在 Mongo 文档中。

Answer 1

您可以在 JSON 中使用覆盖值列表重新生成正确的模式，但这需要是一个列表

public Coverage1.Coverage[] values;

因此，也更改getters和setters。

然后，您可以cv.setValues(Coverage1.Coverage.values());

或者，您可能尝试过这样做

List<Coverage1.Coverage> ae= new ArrayList<Coverage1.Coverage>(Arrays.asList( Coverage1.Coverage.values());

或者，

for(Coverage1.Coverage enumval: Coverage1.Coverage.values() ){
    ae.add(enumval);
}

基本上，cv.setValue(enumval); 不能在循环中完成，因为您会覆盖 value

我还会为枚举建议更好的名称。 Coverage1 末尾的那个可以去掉

如何在变量中设置整个枚举列表，然后将其保存在 MongoDB 中

How to set entire enum list in a variable and then save it in MongoDB

java

enums

pojo

mongodb