IDEA重写toString()模板，转成json格式

1.类中Alt + Insert，弹出下框

2.点击新增

public java.lang.String toString() {
final java.lang.StringBuilder sb = new java.lang.StringBuilder("{");
#set ($i = 0)
#foreach ($member in $members)#if ($i == 0)
sb.append("#####
#else
sb.append(",####
#end#if ($member.string || $member.date)
\"$member.name\":\"")
#else
\"$member.name\":")
#end#if ($member.primitiveArray || $member.objectArray)
.append(java.util.Arrays.toString($member.name));
#elseif ($member.string || $member.date)
.append($member.accessor).append('\"');
#else
.append($member.accessor);
#end#set ($i = $i + 1)
#end
sb.append('}');
return sb.toString();
}

模仿StringBuilder(JDK 1.5)实现即可！