GIS的学习（十九）Geoserver使用添加，删除，查询地图中的POI
在geoserver自定义的地图中通过geoserver wfs 查询，删除，添加相关的POI。
相关操作的格式如下：
查询
xmlns:opengis="http://www.cetusOpengis.com"
xmlns:wfs="http://www.opengis.net/wfs"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd">
添加
xmlns:opengis="http://www.cetusOpengis.com"
xmlns:wfs="http://www.opengis.net/wfs"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd">
修改
xmlns:opengis="http://www.cetusOpengis.com"
xmlns:wfs="http://www.opengis.net/wfs"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd">
删除
xmlns:opengis="http://www.cetusOpengis.com"
xmlns:wfs="http://www.opengis.net/wfs"
xmlns:ogc="http://www.opengis.net/ogc"
xmlns:gml="http://www.opengis.net/gml"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.opengis.net/wfs http://schemas.opengis.net/wfs/1.0.0/WFS-basic.xsd">
具体实现如下：
package com.geoserver;
import java.util.HashMap;
import java.util.Map;
import java.util.Map.Entry;
/**
* 操作geoserver的几种方法
*
*
*
* @Title: TODO
* @Description: 实现TODO
* @Copyright:Copyright (c) 2011
* @Company:
* @Date:2012-8-30
* @author
* @version 1.0
*/
public class MainGeoService {
public static void main(String[] args) {
addGeoServerService();
}
/**
* 添加地图定的信息
*/
public static void addGeoServerService(){
String layerName="loc_point";
String namespaceValue="http://www.easyway.net.cn";
double lat=139.54d;
double lon=-116.23d;
Map params=new HashMap();
params.put("FID", "loc_point.4");
params.put("NAME", "easyway_001");
params.put("OBJECT_CODE", "beijing_tsingperk_768");
params.put("HANDLE_ID", "768");
params.put("STATUS", "1");
params.put("DESCRIPTION", "this is point add by programe");
StringBuffer sb = new StringBuffer();
sb.append(" ");
sb.append(" ");
sb.append(" ");
sb.append(" ");
sb.append(" ");
sb.append(" "+lat+","+lon+" ");
sb.append(" ");
sb.append(" ");
if(!params.isEmpty()){
for (Entry entry : params.entrySet()) {
sb.append(" "+entry.getValue()+" ");
}
}
sb.append(" ");
sb.append(" ");
sb.append(" ");
String response = HttpUtils.doGeoServerPOST(
"http://10.100.108.20:8080/geoserver/wfs?outputFormat=json",
sb.toString());
System.out.println("response:");
System.out.println("" + response);
}
/**
* 查询地图中的访问
* 假定我们指定的查询范围为bbox，根据上述参数设定，进行范围查询的Url为：
* “WfsUrl?REQUEST=GetFeature&typeName= WfsNamespace : WfsLayerName &bbox=bbox&outputFormat=json”。
* bbox是怎么来的呢？bbox实际上描绘的是一个矩形，假定矩形左下角的点是Max(x1,y1)，右上角的点是Min(x2,y2)，
* 则bbox是形如“x1,y1,x2,y2”的一个字符串。
*/
public static void queryRangeGeoServerService() {
//空间
String namespace="jacob";
//图层名称
String layerName="loc_point";
double minX=40.34d;
double minY=65.344d;
double maxX=45.34d;
double maxY=67.34d;
String queryRangeURL="http://10.100.108.20:8080/geoserver/wfs?REQUEST=GetFeature&typeName="+namespace+":"+layerName+"&bbox="+minX+","+minY+","+maxX+","+maxY+"&outputFormat=json";
String response = HttpUtils.doGeoServerPOST(queryRangeURL,"");
System.out.println("response:");
System.out.println("" + response);
}
/**
* 查询名称为cesuo 的地方
*
*/
public static void queryGeoServerService() {
String namespace="jacob";
String namespaceValue="http://www.easyway.net.cn";
String layerName="loc_point";
Map params=new HashMap();
params.put("Name", "cesuo");
StringBuffer sb = new StringBuffer();
sb.append("");
sb.append(" ");
sb.append(" ");
sb.append(" ");
if(!params.isEmpty()){
for (Entry entry : params.entrySet()) {
sb.append(" f:"+entry.getKey()+" ");
sb.append(" "+entry.getValue()+" ");
}
}
sb.append(" ");
sb.append(" ");
sb.append(" ");
sb.append(" ");
String response = HttpUtils.doGeoServerPOST(
"http://10.100.108.20:8080/geoserver/wfs?outputFormat=json",
sb.toString());
System.out.println("response:");
System.out.println("" + response);
}
/**
*
* 假定我们要删除的STATE_NAME为北京的点，则根据上述参数设定，此查询的url为：WfsUrl，
* 同时需要将如下形式的参数信息，提交到服务器。如以post的方式，
* 将参数信息写入HttpWebRequest的RequestStream中。
*
*/
public static void deletePointGeoServerService() {
String namespace="jacob";
String namespaceValue="http://www.easyway.net.cn";
String layerName="loc_point";
Map params=new HashMap();
params.put("Name", "cesuo");
StringBuffer sb = new StringBuffer();
sb.append("");
sb.append(" ");
sb.append(" ");
sb.append(" ");
if(!params.isEmpty()){
for (Entry entry : params.entrySet()) {
sb.append(" f:"+entry.getKey()+" ");
sb.append(" "+entry.getValue()+" ");
}
}
sb.append(" ");
sb.append(" ");
sb.append(" ");
sb.append(" ");
String response = HttpUtils.doGeoServerPOST(
"http://10.100.108.20:8080/geoserver/wfs?outputFormat=json",
sb.toString());
System.out.println("response:");
System.out.println("" + response);
}
}
package com.geoserver;
import java.io.IOException;
import java.io.ObjectInputStream;
import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.scheme.PlainSocketFactory;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;
import org.apache.http.entity.StringEntity;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.params.CoreConnectionPNames;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
*
* @Title: TODO
* @Description: 实现TODO
* @Copyright:Copyright (c) 2011
* @Company:
* @Date:2012-8-30
* @author
* @version 1.0
*/
public class HttpUtils {
private final static Logger logger = LoggerFactory.getLogger(HttpUtils.class);
private static final int DEFAULT_CONN_TIMEOUT_MILLISECONDS = 5 * 1000;
private static final int DEFAULT_READ_TIMEOUT_MILLISECONDS = 60 * 1000;
private static final String CHARSET = "utf-8";
private static HttpClient httpClient;
static HttpHost proxy;
static {
proxy = new HttpHost("10.0.0.172", 80);
}
private static HttpClient initHttpClient(String charset) {
if (charset == null)
charset = System.getProperty("sun.jnu.encoding");
releaseConnection();
// 设置我们的HttpClient支持HTTP和HTTPS两种模式
SchemeRegistry schemeRegistry = new SchemeRegistry();
schemeRegistry.register(new Scheme("http", 80, PlainSocketFactory.getSocketFactory()));
schemeRegistry.register(new Scheme("https", 443, SSLSocketFactory.getSocketFactory()));
// 使用线程安全的连接管理来创建HttpClient
/*ThreadSafeClientConnManager connectionManager = new ThreadSafeClientConnManager(schemeRegistry);
connectionManager.setMaxTotal(DEFAULT_MAX_TOTAL_CONNECTIONS);
connectionManager.setDefaultMaxPerRoute(DEFAULT_MAX_CONNECTIONS_PER_ROUTE);*/
httpClient = new DefaultHttpClient();
/*HttpParams params = httpClient.getParams();
params.setIntParameter(CoreConnectionPNames.CONNECTION_TIMEOUT,
DEFAULT_CONN_TIMEOUT_MILLISECONDS);
params.setIntParameter(CoreConnectionPNames.SO_TIMEOUT,
DEFAULT_READ_TIMEOUT_MILLISECONDS);*/
setConnectTimeout(DEFAULT_CONN_TIMEOUT_MILLISECONDS);
setReadTimeout(DEFAULT_READ_TIMEOUT_MILLISECONDS);
return httpClient;
}
/**
* HTTP post请求
*
* @param url
* 请求地址
* @param parmsMap
* post数据
* @return
*/
public static String doGeoServerPOST(String url, String requst) {
HttpPost httpPost = null;
HttpResponse httpResponse = null;
ObjectInputStream ois = null;
try {
if (httpClient == null)
initHttpClient(CHARSET);
httpPost = new HttpPost(url);
// 绑定参数Entity
StringEntity stringEntity = new StringEntity(requst, CHARSET);
httpPost.setEntity(stringEntity);
// 发送请求
httpResponse = httpClient.execute(httpPost);
if (httpResponse.getStatusLine().getStatusCode() == 200) {
Header[] headers = httpResponse.getAllHeaders();
for(Header h : headers){
System.err.println(h.getName() + " : " + h.getValue());
}
HttpEntity entity = httpResponse.getEntity();
return EntityUtils.toString(entity);
}
return null;
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
try {
if (ois != null) {
ois.close();
}
} catch (IOException e) {
e.printStackTrace();
}
httpClient.getConnectionManager().shutdown();
}
}
/**
* Set the connection timeout for the underlying HttpClient. A timeout value
* of 0 specifies an infinite timeout.
*
* @param timeout the timeout value in milliseconds
*/
private static void setConnectTimeout(int timeout) {
httpClient.getParams().setIntParameter(CoreConnectionPNames.CONNECTION_TIMEOUT,
timeout);
}
/**
* Set the socket timeout (SO_TIMEOUT) in milliseconds, which is the timeout
* for waiting for data or, put differently, a maximum period inactivity
* between two consecutive data packets.A timeout value of 0 specifies an
* infinite timeout.
*
* @param timeout the timeout value in milliseconds
*/
private static void setReadTimeout(int timeout) {
httpClient.getParams().setIntParameter(CoreConnectionPNames.SO_TIMEOUT, timeout);
}
private static void releaseConnection() {
if (httpClient != null)
httpClient.getConnectionManager().shutdown();
}
}