java导出地图矢量Shp文件，也包含shx,qix,prj,dbf,fix
解决方法：
1.下面方法list就是从数据库查出来的数据，geometry字段要加ST_ASTEXT，我这里只导出两个属性，我把所有地图信息文件都打在一个zip包中到浏览器下载
SELECT e.estate_num, ST_ASTEXT(e.geom) geom from tb_real e
2.核心方法
/**
* 导出Shp
*/
public static boolean exportShp(HttpServletResponse response, List<Map<String, Object>> list) {
boolean flag = false;
FileOutputStream fileOutputStream = null;
String id = StringUtil.getid();
String tempPath = System.getProperty("catalina.home") + "/temp/"+ id + "/" ;
String shpFilePath = tempPath + id + ".shp";//临时文件
String zippath = System.getProperty("catalina.home") + "/temp/" + id + ".zip";//压缩包,把xls文件压缩到zip中，在浏览器下载
File dir = new File(tempPath);
if (!dir.exists()) {//每目录就新建
dir.mkdirs();
}
//把生成的文件压缩为.zip的
File zipfile = new File(zippath);
File shpFile = new File(shpFilePath);
try {
//定义属性
final SimpleFeatureType TYPE = DataUtilities.createType("Location",
"the_geom:MultiPolygon," + // <- the geometry attribute: Point type
"BH:String"
);
SimpleFeatureCollection collection = FeatureCollections.newCollection();
SimpleFeatureBuilder featureBuilder = new SimpleFeatureBuilder(TYPE);
for (Map<String, Object> row : list) {
String wkt = row.get("geom").toString();
//WKT转Geometry
WKTReader wktReader = new WKTReader();
Geometry geometry = null;
try {
geometry = wktReader.read(wkt);
//geometry.setSRID(4326);
} catch (com.vividsolutions.jts.io.ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
;
Object[] obj = {geometry, row.get("estate_num")};
SimpleFeature feature = featureBuilder.buildFeature(null, obj);
collection.add(feature);
/*feature = featureBuilder.buildFeature(null, obj);
collection.add(feature);*/
}
ShapefileDataStoreFactory dataStoreFactory = new ShapefileDataStoreFactory();
Map<String, Serializable> params = new HashMap<String, Serializable>();
params.put("url", shpFile.toURI().toURL());
params.put("create spatial index", Boolean.TRUE);
ShapefileDataStore newDataStore = (ShapefileDataStore) dataStoreFactory.createNewDataStore(params);
newDataStore.createSchema(TYPE);
newDataStore.forceSchemaCRS(DefaultGeographicCRS.WGS84);
Transaction transaction = new DefaultTransaction("create");
String typeName = newDataStore.getTypeNames()[0];
SimpleFeatureSource featureSource = newDataStore.getFeatureSource(typeName);
if (featureSource instanceof SimpleFeatureStore) {
SimpleFeatureStore featureStore = (SimpleFeatureStore) featureSource;
featureStore.setTransaction(transaction);
try {
featureStore.addFeatures(collection);
transaction.commit();
} catch (Exception problem) {
problem.printStackTrace();
transaction.rollback();
} finally {
transaction.close();
}
}
FileOutputStream fos1 = new FileOutputStream(zipfile);
ZipUtils.toZip(tempPath, fos1, true);
// 读到流中
InputStream inStream = new FileInputStream(zippath);//文件的存放路径
// 设置输出的格式
response.reset();
response.setContentType("bin");
response.addHeader("Content-Disposition", "attachment;filename=" + URLEncoder.encode(zipfile.getName(), "UTF-8"));
ServletOutputStream outputStream = response.getOutputStream();
// 循环取出流中的数据
byte[] b = new byte[1024];
int len;
while ((len = inStream.read(b)) > 0) {
outputStream.write(b, 0, len);
}
inStream.close();
outputStream.flush();
outputStream.close();
flag = true;
} catch (Exception e) {
log.error("【shp导出失败】" + e.getMessage());
} finally {
if (fileOutputStream != null) {
try {
fileOutputStream.close();
} catch (Exception e) {
log.error("【shp导出流关闭失败】" + e.getMessage());
}
}
File filedir = new File(tempPath);
if (filedir.exists() && filedir.isDirectory()) {
File[] files = filedir.listFiles();
for (File f : files) {
if (f.exists()) {
f.delete();
}
}
filedir.delete();
}
if (zipfile.exists()) {
zipfile.delete();
}
}
return flag;
}
3.ZipUtils压缩工具类：http://yayihouse.com/yayishuwu/chapter/2609
4.如果您找不到依赖包可以参考：http://yayihouse.com/yayishuwu/chapter/2607