java解析dxf文件返回json工具类
时间: 2023-11-16 08:04:08 浏览: 44
这里是一个简单的Java解析DXF文件并返回JSON格式的工具类示例:
```java
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.json.JSONArray;
import org.json.JSONObject;
public class DxfToJsonParser {
public static JSONObject parse(String filePath) throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(filePath));
JSONObject json = new JSONObject();
JSONArray entities = new JSONArray();
Map<String, Object> currentEntity = null;
List<Map<String, Object>> entitiesList = new ArrayList<>();
String line;
while ((line = reader.readLine()) != null) {
line = line.trim();
if (line.startsWith("0")) {
String entityName = reader.readLine().trim();
if (entityName.equals("LINE")) {
currentEntity = new HashMap<>();
currentEntity.put("type", "line");
entitiesList.add(currentEntity);
}
} else if (line.startsWith("10")) {
double x1 = Double.parseDouble(reader.readLine().trim());
currentEntity.put("x1", x1);
} else if (line.startsWith("20")) {
double y1 = Double.parseDouble(reader.readLine().trim());
currentEntity.put("y1", y1);
} else if (line.startsWith("11")) {
double x2 = Double.parseDouble(reader.readLine().trim());
currentEntity.put("x2", x2);
} else if (line.startsWith("21")) {
double y2 = Double.parseDouble(reader.readLine().trim());
currentEntity.put("y2", y2);
}
}
for (Map<String, Object> entity : entitiesList) {
entities.put(entity);
}
json.put("entities", entities);
reader.close();
return json;
}
}
```
这个示例假设DXF文件只包含线条实体。如果你需要解析其他类型的实体,你需要根据DXF文件规范添加相应的代码。