java数组怎么做能变成"FilterString": [{“Left”:“(”,“FieldName”:“FMaterialId.FNumber”,“Compare”:“=”,“Value”:“522025576”,“Right”:“)”,“Logic”:“”}],
时间: 2024-09-10 18:26:13 浏览: 42
在Java中,要将数组转换成类似 "FilterString" 的JSON格式,你可以先创建一个自定义的对象,比如`FilterCondition`,然后用一个数组存储这些对象实例。假设你已经有了这个结构:
```java
import com.google.gson.Gson;
class FilterCondition {
String Left;
String FieldName;
String Compare;
String Value;
String Right;
String Logic;
// 构造函数、getter和setter省略
}
public class Main {
public static void main(String[] args) {
FilterCondition condition = new FilterCondition();
condition.Left = "(";
condition.FieldName = "FMaterialId.FNumber";
condition.Compare = "=";
condition.Value = "522025576";
condition.Right = ")";
condition.Logic = "";
FilterString filterString = new FilterString();
filterString.filterConditions = new FilterCondition[] {condition}; // 创建数组
Gson gson = new Gson(); // 使用Gson库来进行JSON转换
String jsonString = gson.toJson(filterString);
System.out.println(jsonString); // 输出:{"filterConditions":[{"Left":"(","FieldName":"FMaterialId.FNumber","Compare":"=","Value":"522025576","Right":")","Logic":""}]}
}
}
```
这里,我们首先创建了一个`FilterCondition`对象,并设置了相应的属性值。然后,我们将这个对象添加到`FilterString`类的`filterConditions`数组中。最后,使用`Gson`库将整个`FilterString`对象序列化为JSON字符串。
如果你需要动态生成多个条件并保存,可以遍历数组并创建多个`FilterCondition`实例,再添加到`filterConditions`数组中。
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