Eclipse:定製toString()

一直對一些問題沒有去深的研究,有人說Intellij好,有人說MyEclipse好,有人說Eclipse好,其實蘿蔔青菜各有所愛,只是看大家使用的習慣或者說公司用什麼,你不能左右的時候,請去適合周圍的環境,當我們說建立一個類的時候,最後去重寫其toString方法,但是我們是否考慮過生成自己喜歡的風格呢? 下面我就來介紹一下使用Eclipse定製生成toString模版

Eclipse官方文件

這裡我借鑑了 https://help.eclipse.org/neon/index.jsp?topic=%2Forg.eclipse.jdt.doc.user%2Freference%2Fref-dialog-tostring.htm 文件說明,稍後再來回顧

定製toString模版圖解

• 1.點選toString方法

  

• 2.點選編輯按鈕

  

• 3.點選New按鈕設計新的規則

  

  

• 4.定製生成Json格式的規則策略

  {"className":"{object.getClassName}","{member.name()}":"{member.value}","{otherMembers}"}  
  複製程式碼

  

  點選OK完成,之後需要在toString的頁面設定

• 5.最後一步設定

  

• 6.生成效果如下

  	@Override
  	public String toString() {
  		StringBuilder builder = new StringBuilder();
  		builder.append("{\"");
  		if (this.role_id != null) {
  			builder.append("role_id\":\"");
  			builder.append(this.role_id);
  			builder.append("\",\"");
  		}
  		if (this.role_name != null) {
  			builder.append("role_name\":\"");
  			builder.append(this.role_name);
  			builder.append("\",\"");
  		}
  		if (this.role_key != null) {
  			builder.append("role_key\":\"");
  			builder.append(this.role_key);
  			builder.append("\",\"");
  		}
  		if (this.status != null) {
  			builder.append("status\":\"");
  			builder.append(this.status);
  		}
  		builder.append("\"}");
  		return builder.toString();
  	}
  複製程式碼

模版屬性簡單說明

${object.className}	inserts the class name as a simple String
${object.getClassName}	inserts a call to this.getClass.getName()
${object.superToString}	inserts a call to super.toString()
${object.hashCode}	inserts a call to this.hashCode()
${object.identityHashCode}	inserts a call to System.identityHashCode(this)
${member.name}	inserts the first member's name
${member.name()}	inserts the first member's name followed by parenthesis in case of methods
${member.value}	inserts the first member's value
${otherMembers}	inserts the remaining members. For each member, the template fragment between the first and the last ${member.*} variable is evaluated and appended to the result. The characters between the last ${member.*} and ${otherMembers} define the separator that is inserted between members (${otherMembers} must stand after the last ${member.*} variable).