玩轉Eclipse — 爲懶人準備的Java Code Templates（持續更新中...）

        在之前的一篇博客《玩轉Eclipse — 自動代碼生成的Java Code Template》中詳細介紹了，如何利用Java Code Template自動地快速生成具有一定規律、可以模板化的代碼。一個簡單的Content Assist快捷鍵，就可以幫助我們生成很長的一段代碼，避免重複地敲相同代碼，同時保證相同代碼格式相同，提高軟件開發的效率。本文結合自己工作中的實踐，收集了一些常用的Code Template，分享給想使自己編碼速度更快的朋友。如果後面發現更多好的Code Template，會不斷更新到該博客中。

1. 自己收集的Template

• Const屬性

private static final ${type} ${name} = new ${type}(${cursor});

• Format字符串

${:import(java.text.MessageFormat)} 
MessageFormat.format(${word_selection}, ${cursor});

• SLF4J日誌

${:import(org.slf4j.Logger,org.slf4j.LoggerFactory)}
/**
 * Logging mechanism.
 */
private static Logger logger = LoggerFactory.getLogger(${enclosing_type}.class);

• Singleton模式

/**
 * The shared instance.
 */
private static ${enclosing_type} instance = new ${enclosing_type}();

/**
 * Private constructor.
 */
private ${enclosing_type}() {
    super();
}

/**
 * Returns this shared instance.
 *
 * @returns The shared instance
 */
public static ${enclosing_type} getInstance() {
    return instance;
}

• 讀取文件

${:import(java.io.BufferedReader,  
          java.io.FileNotFoundException,  
          java.io.FileReader,  
          java.io.IOException)}  
BufferedReader in = null;  
try {  
   in = new BufferedReader(new FileReader(${fileName}));  
   String line;  
   while ((line = in.readLine()) != null) {  
      ${cursor}  
   }  
}  
catch (FileNotFoundException e) {  
   // Handle exception
}  
catch (IOException e) {  
   // Handle exception
} finally {  
   if(in != null) in.close();  
}

• TestNG測試方法

${:import(org.testng.annotations.Test, org.testng.annotations.Parameters, org.testng.Assert)}
@Test(groups = "${name}")
public final void ${name}() {
	${cursor}
}

2. Eclipse內置的Template

• syserr：print to standard error

System.err.println(${word_selection}${});${cursor}

• sysout：print to standard out

System.out.println(${word_selection}${});${cursor}

• systrace：print current method to standard out

System.out.println("${enclosing_type}.${enclosing_method}()");

• cast：dynamic cast

${type} ${new_name} = (${type}) ${name};

• do：do while statement

do {
	${line_selection}${cursor}
} while (${condition:var(boolean)});

• foreach：iterate over an array or Iterable

for (${iterable_type} ${iterable_element} : ${iterable}) {
	${cursor}
}

• ifelse：if else statement

if (${condition:var(boolean)}) {
	${cursor}
} else {
	
}

• switch：switch case statement

switch (${key}) {
	case ${value}:
		${cursor}
		break;
	default:
		break;
}

• main：main method

public static void main(String[] args) {
	${cursor}
}

• new：create new object

${type} ${name} = new ${type}(${arguments});

Reference

        Useful Eclipse Java Code Templates

        玩轉Eclipse — 自動代碼生成的Java Code Template