java导出shp乱码

如果在Java中导出SHP文件出现乱码，可能是由于文件编码不匹配造成的。你可以尝试以下方法来解决这个问题：

1. 指定文件编码方式。在导出文件时，可以指定文件的编码方式，例如UTF-8、GBK等。例如：

BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(filePath), "GBK"));

2. 转换编码方式。如果导出文件时没有指定编码方式，可以将要写入的字符串先转换为指定编码方式的字节流再写入。例如：

String str = "要写入的文本";
byte[] bytes = str.getBytes("GBK");
outputStream.write(bytes);

3. 使用第三方库。如果以上方法无法解决问题，可以考虑使用第三方库来导出SHP文件，例如GeoTools。GeoTools是一个用于空间数据处理的Java库，可以读取和写入各种空间数据格式，包括SHP文件。你可以使用以下代码来导出SHP文件：

File file = new File(filePath);
FileDataStoreFactorySpi factory = new ShapefileDataStoreFactory();
Map<String, Serializable> params = new HashMap<>();
params.put("url", file.toURI().toURL());
params.put("create spatial index", Boolean.TRUE);
ShapefileDataStore shpDataStore = (ShapefileDataStore) factory.createNewDataStore(params);
shpDataStore.setCharset(Charset.forName("GBK"));
SimpleFeatureTypeBuilder builder = new SimpleFeatureTypeBuilder();
builder.setName("MyShapefile");
builder.add("location", Point.class);
builder.add("name", String.class);
builder.add("number", Integer.class);
builder.add("area", Double.class);
builder.setDefaultGeometry("location");
SimpleFeatureType featureType = builder.buildFeatureType();
shpDataStore.createSchema(featureType);
Transaction transaction = new DefaultTransaction("create");
String typeName = shpDataStore.getTypeNames()[0];
SimpleFeatureSource featureSource = shpDataStore.getFeatureSource(typeName);
SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
featureStore.setTransaction(transaction);
try (FeatureWriter<SimpleFeatureType, SimpleFeature> writer = shpDataStore.getFeatureWriter(typeName, transaction)) {
    SimpleFeature feature = writer.next();
    feature.setAttribute("location", geometryFactory.createPoint(new Coordinate(0, 0)));
    feature.setAttribute("name", "test");
    feature.setAttribute("number", 1);
    feature.setAttribute("area", 2.3);
    writer.write();
    transaction.commit();
} catch (Exception e) {
    transaction.rollback();
    throw new RuntimeException(e);
} finally {
    transaction.close();
}

以上是一些可能有用的方法，希望能帮到你！