学步园

使用memcahce的时候，没有办法操作具体的key，于是自己用Awt随意写了一个

package memcache;


import java.awt.Color;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Date;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;


import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.JTextField;
import javax.swing.text.DefaultHighlighter;
import javax.swing.text.Highlighter;


import com.danga.MemCached.MemCachedClient;
import com.danga.MemCached.SockIOPool;


public class MemcacheUI {
static JFrame frame;
static JPanel panel;
static JTextField urlTextField;
static JButton connectBtn;
static JButton closeBtn;


static JTextField keyTextField;
static JTextField valueTextField;


static JButton getBtn;
static JButton getCounterBtn;
static JButton setBtn;
static JButton setCounterBtn;
static JButton delBtn;
static JButton getAllKeysBtn;


static MemcacheNode mcClient;


public static void main(String[] args) {
initPanel();
initEvents();
}


private static void initEvents() {
connectBtnEvent();
optionBtnEvent();
}


private static void optionBtnEvent() {
getBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (mcClient == null) {
JOptionPane.showMessageDialog(null, "请先连接Memcache!");
return;
}
String key = keyTextField.getText().trim();
if (isNull(key)) {
JOptionPane.showMessageDialog(null, "Key为空！");
return;
}
Object object = mcClient.get(key);
setValueText(object);
}
});


getCounterBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (mcClient == null) {
JOptionPane.showMessageDialog(null, "请先连接Memcache!");
return;
}
String key = keyTextField.getText().trim();
if (isNull(key)) {
JOptionPane.showMessageDialog(null, "Key为空！");
return;
}
Long object = mcClient.getCounter(key);
if (object == -1) {
setValueText(null);
} else {
setValueText(object);
}
}
});


setBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (mcClient == null) {
JOptionPane.showMessageDialog(null, "请先连接Memcache!");
return;
}
String key = keyTextField.getText().trim();
String value = valueTextField.getText().trim();
if (isNull(key)) {
JOptionPane.showMessageDialog(null, "Key为空！");
return;
}


if (isNull(value)) {
JOptionPane.showMessageDialog(null, "Value为空！");
return;
}


mcClient.set(key, value);
}
});


setCounterBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (mcClient == null) {
JOptionPane.showMessageDialog(null, "请先连接Memcache!");
return;
}
String key = keyTextField.getText().trim();
String value = valueTextField.getText().trim();
if (isNull(key)) {
JOptionPane.showMessageDialog(null, "Key为空！");
return;
}


if (isNull(value)) {
JOptionPane.showMessageDialog(null, "Value为空！");
return;
}


long counter = toLong(value);
if (counter == -1) {
JOptionPane.showMessageDialog(null, "Value必须是数字且不能是负数！");
return;
}
mcClient.storeCounter(key, counter);
}
});


delBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (mcClient == null) {
JOptionPane.showMessageDialog(null, "请先连接Memcache!");
return;
}
String key = keyTextField.getText().trim();
if (isNull(key)) {
JOptionPane.showMessageDialog(null, "Key为空！");
return;
}


boolean delete = mcClient.delete(key);
if (delete) {
JOptionPane.showMessageDialog(null, "删除成功");
} else {
JOptionPane.showMessageDialog(null, "删除失败，或者没有该key");
}
}
});


getAllKeysBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (mcClient == null) {
JOptionPane.showMessageDialog(null, "请先连接Memcache!");
return;
}


ArrayList<Object> allKeys = mcClient.getAllKeys();
new ShowKeyFrame(allKeys);


}
});
}


private static boolean isNull(String s) {
if (s == null || "".equals(s.trim())) {
return true;
}
return false;
}


private static void setValueText(Object obj) {
valueTextField.setText(obj == null ? "" : obj.toString());
}


private static long toLong(String s) {
long r = -1;
try {
r = Long.parseLong(s);
if (r < 0) {
return -1;
}
} catch (Throwable e) {
return -1;
}


return r;
}


private static void connectBtnEvent() {
connectBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
String trim = urlTextField.getText().trim();
String[] url = trim.split(",");
try {
mcClient = new MemcacheNode(url);
if (mcClient == null) {
JOptionPane.showMessageDialog(null, "地址错误，连接不上！");
} else {
connectBtn.setText("重新连接");
}
} catch (Throwable ex) {
JOptionPane.showMessageDialog(null, "地址错误，连接不上！");
}
}
});


closeBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.dispose();
}
});
}


private static void initPanel() {
frame = new JFrame("Memcache UI, aothor: Anders");
panel = new JPanel();


frame.add(panel);
frame.setSize(600, 220);
frame.setLocationRelativeTo(null);
frame.setResizable(false);


initConnectPanel();
initOptionPanel();


show();
}


private static void show() {
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}


private static void initConnectPanel() {
JPanel connectPanel = new JPanel();
urlTextField = new JTextField(30);
urlTextField.setText("127.0.0.1:11211,127.0.0.1:11211");
urlTextField.setPreferredSize(new Dimension(80, 30));
connectBtn = new JButton("连接");
closeBtn = new JButton("拜拜了");


connectPanel.add(urlTextField);
connectPanel.add(connectBtn);
connectPanel.add(closeBtn);
panel.add(connectPanel);
}


private static void initOptionPanel() {
JLabel keyLabel = new JLabel("Key:");
JLabel valueLabel = new JLabel("Value:");


JPanel optionPanel = new JPanel();
keyTextField = new JTextField(20);
keyTextField.setPreferredSize(new Dimension(50, 30));
valueTextField = new JTextField(20);
valueTextField.setPreferredSize(new Dimension(50, 30));


JPanel optionPanel2 = new JPanel();
getBtn = new JButton("Get");
getCounterBtn = new JButton("GetCounter");
setBtn = new JButton("Set");
setCounterBtn = new JButton("StoreCounter");
delBtn = new JButton("Delete");
getAllKeysBtn = new JButton("All Keys");


optionPanel.add(keyLabel);
optionPanel.add(keyTextField);
optionPanel.add(valueLabel);
optionPanel.add(valueTextField);


optionPanel2.add(getBtn);
optionPanel2.add(setBtn);
optionPanel2.add(getCounterBtn);
optionPanel2.add(setCounterBtn);
optionPanel2.add(delBtn);
optionPanel2.add(getAllKeysBtn);


panel.add(optionPanel);
panel.add(optionPanel2);
}


public static class MemcacheNode {


private String name;
private MemCachedClient client;


MemcacheNode(String[] ips) {
SockIOPool pool = SockIOPool.getInstance();
pool.setServers(ips);


pool.setInitConn(1);
pool.setMinConn(1);
pool.setMaxConn(5);
pool.setMaxIdle(300000);
pool.setMaxBusyTime(300000);


/* 设置线程休眠时间 */
pool.setMaintSleep(10000);


pool.setNagle(false);// 禁用nagle算法
pool.setSocketTO(3000);// 3秒超时
pool.setSocketConnectTO(0);


pool.setAliveCheck(true);
pool.setHashingAlg(0);


pool.initialize();
this.client = new MemCachedClient();
}


public String getName() {
return name;
}


// ===================具体业务方法===================
public String getString(String key) {
return (String) get(key);
}


public Object get(String key) {
return this.client.get(key);
}


public boolean set(String key, Object value) {
return this.client.set(key, value);
}


public boolean set(String key, Object value, Date expiry) {
return this.client.set(key, value, expiry);
}


public boolean delete(String key) {
return this.client.delete(key);
}


public boolean keyExists(String key) {
return this.client.keyExists(key);
}


public boolean add(String key, Object value, Date expiry) {
return this.client.add(key, value, expiry);
}


public Map<String, Object> getMulti(String[] keys) {
return this.client.getMulti(keys);
}


public boolean storeCounter(String key, long counter) {
return this.client.storeCounter(key, counter);
}


public long getCounter(String key) {
return this.client.getCounter(key);
}


public long addOrIncr(String key, long inc) {
return this.client.addOrIncr(key, inc);
}


public long addOrDecr(String key, long inc) {
return this.client.addOrDecr(key, inc);
}


public long incr(String key, long inc) {
return this.client.incr(key, inc);
}


public long incr(String key) {
return this.client.incr(key);
}


public long decr(String key, long inc) {
return this.client.decr(key, inc);
}


public long decr(String key) {
return this.client.decr(key);
}


public Object[] getMultiArray(String[] keys) {
return this.client.getMultiArray(keys);
}


public Map<String, Long> getMultiCounters(String[] keys) {
Map<String, Object> rawResult = this.client.getMulti(keys, null, true);
if (rawResult == null) {
return null;
}
Map<String, Long> result = new HashMap<String, Long>(keys.length);
String val;
for (Entry<String, Object> en : rawResult.entrySet()) {
Long counter = null;
val = (String) en.getValue();
if (val != null && !val.equals("")) {
counter = Long.parseLong(val.trim());
}
result.put(en.getKey(), counter);
}
return result;
}


public boolean flushAll() {
return this.client.flushAll();
}


public boolean ping() {
return !this.client.stats().isEmpty();
}


public ArrayList<Object> getAllKeys() {
Map statsItems = this.client.statsItems();
Set keySet = statsItems.keySet();
Map subMap = null;
for (Object object : keySet) {
subMap = (Map) statsItems.get(object);
}


HashSet<Integer> keys = new HashSet<Integer>();
for (Object object : subMap.keySet()) {
String items = (String) object;
String[] split = items.split(":");
if (split != null && split.length == 3) {
keys.add(Integer.parseInt(split[1]));
} else {
continue;
}
}


ArrayList<Object> allKeyList = new ArrayList<Object>();


for (Integer integer : keys) {
Map statsCacheDump = this.client.statsCacheDump(integer, 0);
for (Object object : statsCacheDump.keySet()) {
String key = (String) object;
Map mcKeyMap = (Map) statsCacheDump.get(key);
for (Object subKey : mcKeyMap.keySet()) {
allKeyList.add(subKey);
}
}
}


return allKeyList;
}


}


public static class ShowKeyFrame {
JFrame frame;
JPanel panel;
JTextArea textArea;
JTextField searchTextField;
JButton findBtn;
JButton nextBtn;
JButton closeBtn;
ArrayList<Integer> positionList;
int curPosition;


public ShowKeyFrame(ArrayList<Object> keys) {
frame = new JFrame();
panel = new JPanel();
textArea = new JTextArea(35, 50);
findBtn = new JButton("查找");
nextBtn = new JButton("下一个");
closeBtn = new JButton("关闭");
searchTextField = new JTextField(20);
searchTextField.setPreferredSize(new Dimension(50, 30));


positionList = new ArrayList<Integer>();


StringBuilder sb = new StringBuilder();
for (Object string : keys) {
sb.append(string).append("\n");
}
textArea.setText(sb.toString());


textArea.setEditable(false);
textArea.setLineWrap(true);

initCloseEvent();


frame.setSize(600, 680);
JScrollPane text2 = new JScrollPane(textArea);
panel.add(text2);
panel.add(searchTextField);
panel.add(findBtn);
panel.add(nextBtn);
panel.add(new JLabel("总共有" + keys.size() + " 个key "));
panel.add(closeBtn);
frame.add(panel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}


private void initCloseEvent() {
closeBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
frame.dispose();
}
});


nextBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
if (positionList == null || positionList.isEmpty()) {
return;
}


curPosition++;
if (curPosition > (positionList.size() - 1)) {
curPosition = 0;
}
textArea.setCaretPosition(positionList.get(curPosition));
nextBtn.setText("下一个(共" + positionList.size() + "个,第  " + (curPosition + 1) + "个)");
}
});


findBtn.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
Highlighter highLighter = textArea.getHighlighter();
String text = textArea.getText();
DefaultHighlighter.DefaultHighlightPainter p = new DefaultHighlighter.DefaultHighlightPainter(Color.YELLOW);
String keyWord = searchTextField.getText().trim();
int pos = 0;
positionList.clear();
curPosition = 0;
while ((pos = text.indexOf(keyWord, pos)) >= 0) {
try {
positionList.add(pos);
highLighter.addHighlight(pos, pos + keyWord.length(), p);
pos += keyWord.length();
} catch (Exception ex) {
ex.printStackTrace();
}
}
if (positionList.size() > 0) {
curPosition = 0;
textArea.setCaretPosition(positionList.get(0));
nextBtn.setText("下一个(共" + positionList.size() + "个,第 1个)");
}
}
});
}
}
}