这是indexloc提供的服务，不要输入任何密码
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[JAVA-47895] Moved code from core-java-networking-5 to core-java-netw… #18657

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Merged
merged 1 commit into from
Jul 14, 2025
Merged

[JAVA-47895] Moved code from core-java-networking-5 to core-java-netw… #18657

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6 changes: 0 additions & 6 deletions core-java-modules/core-java-networking-5/pom.xml
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Expand Up @@ -36,11 +36,6 @@
<artifactId>jsoup</artifactId>
<version>${jsoup.version}</version>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>${net.version}</version>
</dependency>
<dependency>
<groupId>org.apache.httpcomponents</groupId>
<artifactId>httpclient</artifactId>
Expand Down Expand Up @@ -71,7 +66,6 @@

<properties>
<commons-validator.version>1.7</commons-validator.version>
<net.version>3.8.0</net.version>
<httpclient.version>4.5.2</httpclient.version>
<javax.ws.rs-api.version>2.1.1</javax.ws.rs-api.version>
<jersey-common.version>2.22.2</jersey-common.version>
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6 changes: 6 additions & 0 deletions core-java-modules/core-java-networking-6/pom.xml
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Expand Up @@ -60,6 +60,11 @@
<version>${okhttp.version}</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>commons-net</groupId>
<artifactId>commons-net</artifactId>
<version>${commons-net.version}</version>
</dependency>
</dependencies>

<build>
Expand All @@ -76,6 +81,7 @@
<apache.httpclient5.version>5.4.2</apache.httpclient5.version>
<okhttp.version>4.12.0</okhttp.version>
<webflux.version>3.4.3</webflux.version>
<commons-net.version>3.8.0</commons-net.version>
</properties>

</project>
8 changes: 5 additions & 3 deletions ...etwebfilesize/GetWebFileSizeLiveTest.java → ...etwebfilesize/GetWebFileSizeLiveTest.java
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@@ -1,11 +1,13 @@
package com.baeldung.getwebfilesize;

import org.junit.jupiter.api.Test;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import java.io.IOException;
import java.net.URL;
import java.net.URLConnection;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import org.junit.jupiter.api.Test;

class GetWebFileSizeLiveTest {

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170 changes: 85 additions & 85 deletions ...ng/ipaddresses/SubnetScannerUnitTest.java → ...ng/ipaddresses/SubnetScannerUnitTest.java
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@@ -1,85 +1,85 @@
package com.baeldung.ipaddresses;
import org.apache.commons.net.telnet.TelnetClient;
import org.apache.commons.net.util.SubnetUtils;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.IntStream;
import static org.junit.jupiter.api.Assertions.assertFalse;
public class SubnetScannerUnitTest {
@Test
public void givenSubnet_whenScanningForDevices_thenReturnConnectedIPs() throws Exception {
String subnet = getSubnet();
List<String> connectedIPs = new ArrayList<>();
for (int i = 1; i <= 254; i++) {
String ip = subnet + "." + i;
if (InetAddress.getByName(ip).isReachable(100)) {
connectedIPs.add(ip);
}
}
assertFalse(connectedIPs.isEmpty());
}
@Test
public void givenSubnet_whenUsingStream_thenReturnConnectedIPs() throws UnknownHostException {
String subnet = getSubnet();
List<String> connectedIPs = IntStream.rangeClosed(1, 254)
.mapToObj(i -> subnet + "." + i)
.filter(ip -> {
try {
return InetAddress.getByName(ip).isReachable(100);
} catch (Exception e) {
return false;
}
})
.toList();
assertFalse(connectedIPs.isEmpty());
}
@Test
public void givenSubnet_whenCheckingForOpenPorts_thenReturnDevicesWithOpenPort() throws UnknownHostException {
SubnetUtils utils = new SubnetUtils(getSubnet() + ".0/24");
int port = 80;
List<String> devicesWithOpenPort = Arrays.stream(utils.getInfo().getAllAddresses())
.filter(ip -> {
TelnetClient telnetClient = new TelnetClient();
try {
telnetClient.setConnectTimeout(100);
telnetClient.connect(ip, port);
return telnetClient.isConnected();
} catch (Exception e) {
return false;
} finally {
try {
if (telnetClient.isConnected()) {
telnetClient.disconnect();
}
} catch (IOException ex) {
System.err.println(ex.getMessage());
}
}
})
.toList();
assertFalse(devicesWithOpenPort.isEmpty());
}
private String getSubnet() throws UnknownHostException {
InetAddress localHost = InetAddress.getLocalHost();
byte[] ipAddr = localHost.getAddress();
return String.format("%d.%d.%d", (ipAddr[0] & 0xFF), (ipAddr[1] & 0xFF), (ipAddr[2] & 0xFF));
}
}
package com.baeldung.ipaddresses;

import static org.junit.jupiter.api.Assertions.assertFalse;

import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.stream.IntStream;

import org.apache.commons.net.telnet.TelnetClient;
import org.apache.commons.net.util.SubnetUtils;
import org.junit.jupiter.api.Test;

public class SubnetScannerUnitTest {

@Test
public void givenSubnet_whenScanningForDevices_thenReturnConnectedIPs() throws Exception {
String subnet = getSubnet();
List<String> connectedIPs = new ArrayList<>();

for (int i = 1; i <= 254; i++) {
String ip = subnet + "." + i;
if (InetAddress.getByName(ip).isReachable(100)) {
connectedIPs.add(ip);
}
}

assertFalse(connectedIPs.isEmpty());
}

@Test
public void givenSubnet_whenUsingStream_thenReturnConnectedIPs() throws UnknownHostException {
String subnet = getSubnet();

List<String> connectedIPs = IntStream.rangeClosed(1, 254)
.mapToObj(i -> subnet + "." + i)
.filter(ip -> {
try {
return InetAddress.getByName(ip).isReachable(100);
} catch (Exception e) {
return false;
}
})
.toList();

assertFalse(connectedIPs.isEmpty());
}

@Test
public void givenSubnet_whenCheckingForOpenPorts_thenReturnDevicesWithOpenPort() throws UnknownHostException {
SubnetUtils utils = new SubnetUtils(getSubnet() + ".0/24");
int port = 80;
List<String> devicesWithOpenPort = Arrays.stream(utils.getInfo().getAllAddresses())
.filter(ip -> {
TelnetClient telnetClient = new TelnetClient();
try {
telnetClient.setConnectTimeout(100);
telnetClient.connect(ip, port);
return telnetClient.isConnected();
} catch (Exception e) {
return false;
} finally {
try {
if (telnetClient.isConnected()) {
telnetClient.disconnect();
}
} catch (IOException ex) {
System.err.println(ex.getMessage());
}
}
})
.toList();

assertFalse(devicesWithOpenPort.isEmpty());
}

private String getSubnet() throws UnknownHostException {
InetAddress localHost = InetAddress.getLocalHost();
byte[] ipAddr = localHost.getAddress();
return String.format("%d.%d.%d", (ipAddr[0] & 0xFF), (ipAddr[1] & 0xFF), (ipAddr[2] & 0xFF));
}
}