IDEA使用swing创建应用程序

IDEA

官网下载IDEA社区版

https://www.jetbrains.com/idea/download/#section=windows

设置中文

设置插件界面搜索Chinese插件并安装,然后重启

创建项目

创建Maven项目,设置项目结构SDK

Java doc

https://docs.oracle.com/en/java/javase/index.html

可阅读在线帮助文档

使用Swing

[[IDEA 快速开发 JAVA SWING 教程]]

[[idea 的 Java 窗体可视化工具 Swing UI Designer 的简单使用(一)]]

[[idea 的 Java 窗体可视化工具 Swing UI Designer 的简单使(二)]]

[[swing 的几种布局]]

GUI设计器

使用GUI设计器生成界面

GUI设计器可将GUI生成到二进制类文件或Java源代码

Swing form文件

有时界面不好调整,可直接修改form文件

Swing与多线程

Swing线程之SwingUtilities.invokeLater解释

SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {

}
});

Java Swing开发EDT机制

SwingWorker的用法

自定义标题栏

[[java swing 自定义标题栏，缩放窗口，阴影窗口]]

其中DragEvent 拖拽工具类比较有用

外观修改

[[Swing 外观 抗锯齿 字体设置]]

package com.founder.MediaxFileTool.UI;

import javax.swing.*;
import javax.swing.plaf.ColorUIResource;
import javax.swing.plaf.FontUIResource;
import java.awt.*;
import java.util.HashMap;
import java.util.Map;


public class UIs {

    private static final String FALLBACK_FONT_FAMILY_NAME = Font.SANS_SERIF;
    private static final Map<String, String> FONT_FAMILY_NAMES = new HashMap<String, String>();
    private static final String[] BEST_FONT_FAMILIES = {
            "微软雅黑", "arial", "sans-serif"
    };
    private static final int BEST_FONT_SIZE = 12; // 12px

    static {
        GraphicsEnvironment env = GraphicsEnvironment.getLocalGraphicsEnvironment();
        String[] fontFamilyNames = env.getAvailableFontFamilyNames();
        for (String fontFamilyName : fontFamilyNames) {
            FONT_FAMILY_NAMES.put(fontFamilyName.toLowerCase(), fontFamilyName);
        }
        if (!FONT_FAMILY_NAMES.containsKey("serif")) {
            FONT_FAMILY_NAMES.put("serif", Font.SERIF);
        }
        if (!FONT_FAMILY_NAMES.containsKey("sans-serif")) {
            FONT_FAMILY_NAMES.put("sans-serif", Font.SANS_SERIF);
        }
    }

    public static void enableAntiAliasing() {
        System.setProperty("awt.useSystemAAFontSettings", "on");
        System.setProperty("swing.aatext", "true");
    }

    public static String getLookAndFeel() {
        try {
            for (UIManager.LookAndFeelInfo info : UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    return info.getClassName();
                }
            }
        } catch (Exception ignore) {
        }
        return UIManager.getCrossPlatformLookAndFeelClassName();
    }

    public static String getFontFamily(String[] fontFamilies) {
        for (String fontFamily : fontFamilies) {
            fontFamily = fontFamily.toLowerCase();
            if (FONT_FAMILY_NAMES.containsKey(fontFamily)) {
                return FONT_FAMILY_NAMES.get(fontFamily);
            }
        }
        return FALLBACK_FONT_FAMILY_NAME;
    }

    public static String[] getBestFontFamilies() {
        return BEST_FONT_FAMILIES;
    }

    public static int getBestFontSize() {
        return BEST_FONT_SIZE;
    }



    public static void setUI() {
        enableAntiAliasing();
        // set LookAndFeel
        try {
            //UIManager.setLookAndFeel(getLookAndFeel());
            /*UIManager.put("OptionPane.background",Color.WHITE);
            UIManager.put("Panel.background", Color.WHITE);
            UIManager.put("Panel.foreground", Color.black);
            UIManager.put("Button.background", Color.WHITE);
            UIManager.put("Button.foreground", Color.black);
            UIManager.put("Label.background", Color.WHITE);
            UIManager.put("Label.foreground", Color.black);
            UIManager.put("Panel.background", Color.WHITE);
            UIManager.put("Panel.foreground", Color.black);*/
        } catch (Exception ignore) {
        }
        // set DefaultFont
        String bestFontFamily = getFontFamily(getBestFontFamilies());
        for (Map.Entry<Object, Object> entry : UIManager.getDefaults().entrySet()) {
            if (entry.getValue() instanceof FontUIResource) {
                FontUIResource fontUIRes = (FontUIResource) entry.getValue();
                entry.setValue(new FontUIResource(
                        bestFontFamily,
                        fontUIRes.getStyle(),
                        getBestFontSize() > fontUIRes.getSize() ?
                                getBestFontSize() : fontUIRes.getSize()
                ));
            }

            //默认主题可使用以下代码
            if (entry.getValue() instanceof ColorUIResource) {
                ColorUIResource fontUIRes = (ColorUIResource) entry.getValue();
                if (entry.getKey().toString().endsWith("background")){
                    entry.setValue(new ColorUIResource(Color.WHITE));
                }
                if (entry.getKey().toString().endsWith("foreground")){
                    entry.setValue(new ColorUIResource(Color.black));
                }
            }

        }
    }
}

更改JOption的背景颜色以及button的字体

https://blog.csdn.net/Mr_Pang/article/details/47339373

具体的可以更改的东西，请看点击打开链接

UIManager.setLookAndFeel(getLookAndFeel());
UIManager.put("OptionPane.background",Color.WHITE);
UIManager.put("Panel.background", Color.WHITE);
UIManager.put("Panel.foreground", Color.black);
UIManager.put("Button.background", Color.WHITE);
UIManager.put("Button.foreground", Color.black);

控件设置焦点

//先setVisible(true);显示窗口
//passwordField1.dispatchEvent(new FocusEvent(passwordField1,FocusEvent.FOCUS_GAINED,true));
passwordField1.requestFocusInWindow();

passwordField1.requestFocus();

passwordField1.enableInputMethods(true);//开启输入法支持

//放到windowOpened中
frame.addWindowListener(new WindowListener() {
            @Override
            public void windowOpened(WindowEvent e) {
                passwordField1.requestFocusInWindow();
                passwordField1.enableInputMethods(true);
            }
        });

JTextField内容修改

class TextDocumentListener implements DocumentListener{

        @Override
        public void insertUpdate(DocumentEvent e) {
            GetCaptcha();
        }

        @Override
        public void removeUpdate(DocumentEvent e) {
            GetCaptcha();
        }

        @Override
        public void changedUpdate(DocumentEvent e) {
        }
    }
DocumentListener documentListener = new TextDocumentListener();
textFieldServer.getDocument().addDocumentListener(documentListener);

程序配置文件

package com.founder.MediaxFileTool;

import java.io.*;
import java.util.Properties;

public class ConfigManager {
    private static ConfigManager configManager;
    private static Properties properties;
    private static String strConfigFile;
    public ConfigManager() {

        String mediaxFileToolpath = System.getProperty("user.home")   File.separator   ".xx";

        File mediaxFileToolDir = new File(mediaxFileToolpath);
        if (!mediaxFileToolDir.exists()) {
            mediaxFileToolDir.mkdirs();
        }

        strConfigFile = mediaxFileToolpath   File.separator   "xx.xml";

        File configFile = new File(strConfigFile);

        properties = new Properties();

        if (configFile.exists()){

            try {
                InputStream input=new BufferedInputStream(new FileInputStream(strConfigFile));
                properties.loadFromXML(input);
            } catch (IOException e) {
                e.printStackTrace();
                throw new RuntimeException(e);
            }
        }

    }

    public static ConfigManager getInstance(){
        if(configManager==null){
            configManager = new ConfigManager();
        }
        return configManager;
    }

    public String getString(String key){
        return properties.getProperty(key);
    }
    public void setString(String key,String value){
        properties.setProperty(key,value);
    }

    public void save() {
        try {
            OutputStream output = new FileOutputStream(strConfigFile);
            properties.storeToXML(output,"xx配置","utf-8");
        } catch (IOException e) {
            throw new RuntimeException(e);
        }
    }
}

Meavn

搜索库:https://search.maven.org/

HTTP库

HttpURLConnection与HttpClient,OkHttp

HttpClient

https://hc.apache.org/httpcomponents-client-5.1.x/index.html

https://hc.apache.org/httpcomponents-client-5.1.x/current/httpclient5/apidocs/

异步

package com.founder.MediaxFileTool.Http;

import com.founder.MediaxFileTool.UI.ConfigManager;
import com.founder.MediaxFileTool.UI.StartProgram;
import org.apache.hc.client5.http.async.methods.SimpleHttpRequest;
import org.apache.hc.client5.http.async.methods.SimpleHttpResponse;
import org.apache.hc.client5.http.async.methods.SimpleRequestBuilder;
import org.apache.hc.client5.http.async.methods.SimpleRequestProducer;
import org.apache.hc.client5.http.classic.methods.HttpGet;
import org.apache.hc.client5.http.classic.methods.HttpPost;
import org.apache.hc.client5.http.config.RequestConfig;
import org.apache.hc.client5.http.impl.async.CloseableHttpAsyncClient;
import org.apache.hc.client5.http.impl.async.HttpAsyncClients;
import org.apache.hc.client5.http.impl.nio.PoolingAsyncClientConnectionManager;
import org.apache.hc.core5.concurrent.FutureCallback;
import org.apache.hc.core5.http.ContentType;
import org.apache.hc.core5.http.HttpEntity;
import org.apache.hc.core5.http.HttpResponse;
import org.apache.hc.core5.http.io.entity.StringEntity;
import org.apache.hc.core5.reactor.IOReactorConfig;
import org.apache.hc.core5.util.TimeValue;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.concurrent.Future;
import java.util.concurrent.TimeUnit;

public class AsyncHttpClientUtil {

    private static CloseableHttpAsyncClient closeableHttpAsyncClient = null;

    private static final Logger logger = LoggerFactory.getLogger(AsyncHttpClientUtil.class);

    public synchronized static CloseableHttpAsyncClient getHttpAsyncClient() {

        if (closeableHttpAsyncClient==null){
            RequestConfig requestConfig = RequestConfig.custom()
                    .setConnectTimeout(50000, TimeUnit.MILLISECONDS)
                    .setResponseTimeout(50000,TimeUnit.MILLISECONDS)
                    .setConnectionRequestTimeout(5000, TimeUnit.MILLISECONDS)
                    .build();
            //配置io线程
            IOReactorConfig ioReactorConfig = IOReactorConfig.custom().
                    setIoThreadCount(Runtime.getRuntime().availableProcessors())
                    .setSoKeepAlive(true)
                    .build();
            //设置连接池大小
            PoolingAsyncClientConnectionManager connManager = new PoolingAsyncClientConnectionManager ();
            connManager.setMaxTotal(200);
            connManager.setDefaultMaxPerRoute(200);

            closeableHttpAsyncClient  = HttpAsyncClients.custom().setIOReactorConfig(ioReactorConfig).
                    setConnectionManager(connManager)
                    .setDefaultRequestConfig(requestConfig)
                    .evictExpiredConnections()
                    .evictIdleConnections(TimeValue.ofMinutes(3))
                    .build();

            Runtime.getRuntime().addShutdownHook(new Thread() {
                @Override
                public void run() {
                    AsyncHttpClientUtil.Shutdown();
                }
            });
            closeableHttpAsyncClient.start();
        }

        return  closeableHttpAsyncClient;
    }

    public static void Shutdown(){
        if (closeableHttpAsyncClient!=null){
            try {
                closeableHttpAsyncClient.close();
            } catch (IOException e) {
                logger.error("HttpClient close exception", e);
            }
        }
    }

    //Get请求也可以有body
    public static void DoHttpGet(String uri,/*String strBodyText,*/FutureCallback<SimpleHttpResponse> callback) {

        SimpleHttpRequest request = SimpleRequestBuilder.get( uri)
                .build();
        //request.setBody(strBodyText, ContentType.APPLICATION_JSON);

//        HttpGet httpGet = new HttpGet("http://apis-mediax.devx.fzyun.io/mediax-system/e5/login/captcha");
//        HttpEntity httpEntity = new StringEntity("{\n"  
//                "    \"user\": \"test\", \n"  
//                "    \"password\": \"Founder123\"\n"  
//                "}", ContentType.APPLICATION_JSON);
//        httpGet.setEntity(httpEntity);
//SimpleRequestProducer.create(request)
        Future<SimpleHttpResponse> future = getHttpAsyncClient().execute(request, callback);
        //SimpleHttpRequest
    }

}

日志库

https://blog.csdn.net/goodjava2007/article/details/125195211

使用slf4j桥接其他日志库 (Log4j)

1. 只定义接口没有具体实现的接口标准框架，如：Commons Logging、SLF4J、JCL（Jakarta Commons Logging）、jboss-logging；
2. 有具体实现的日志实现方案，如：Log4j，Log4j2，Logback，Java Util Logging(Jul)、slf4j-simple、slf4j-nop。
3. Logback、slf4j-simple、slf4j-nop直接原生实现了slf4j的接口；
4. Log4j、Log4j2、Java Util Logging(Jul)没有直接实现slf4j接口，所以需要对应的适配类将SLF4J接口和具体实现类进行绑定。

使用SLF4J

Meavn中pom.xml配置

<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-api</artifactId>
<version>1.7.36</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-log4j12</artifactId>
<version>1.7.36</version>
</dependency>

resources添加文件log4j.properties

log4j.rootLogger=INFO, stdout, R

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout

# Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH:mm:ss}][%C{1}:%L] - %m%n
log4j.appender.R=org.apache.log4j.RollingFileAppender
log4j.appender.R.File=log.log
log4j.appender.R.MaxFileSize=512KB
# Keep one backup file
log4j.appender.R.MaxBackupIndex=1
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH:mm:ss}][%C{1}:%L] - %m%n

代码使用

private static final Logger logger = LoggerFactory.getLogger(xx.class);
logger.info("启动");

Json库

FastJson

序列化

TestClass testClass;
Object obj = JSONObject.toJSON(testClass);

try {
    OutputStream output = new FileOutputStream(JsonFile;
    JSON.writeJSONString(output, obj);
    output.close();
} catch (IOException e) {
    
}

反序列化

File file;
InputStream input = new BufferedInputStream(new FileInputStream(file));
TestClass testClass = JSON.parseObject(input, TestClass.class);
input.close();

导出jar包

[[Idea导出可运行jar包及运行方法]]

其中设置META-INF/MANIFEST.MF，选择项目所在根目录,默认目录不对,会造成jar不可启动

运行jar

使用命令

start javaw -jar xx.jar -Dfile.encoding=GB18030
#或
start java -jar xx.jar -Dfile.encoding=GB18030

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