class反编译出现goto如何解决?

[afeng999]

代码如下:

		public String perform()
		{
			result.append("\n    ");
			  goto _L1
_L7:
			token = tokens.nextToken();
			lcToken = token.toLowerCase();
			if (!"'".equals(token)) goto _L3; else goto _L2
_L2:
			String t = tokens.nextToken();
			this.token += t;
			if (!"'".equals(t) && tokens.hasMoreTokens()) goto _L2; else goto _L4
_L3:
			if (!"\"".equals(token)) goto _L4; else goto _L5
_L5:
			t = tokens.nextToken();
			this.token += t;
			if (!"\"".equals(t)) goto _L5; else goto _L4
_L4:
			if (afterByOrSetOrFromOrSelect && ",".equals(token))
				commaAfterByOrFromOrSelect();
			else
			if (afterOn && ",".equals(token))
				commaAfterOn();
			else
			if ("(".equals(token))
				openParen();
			else
			if (")".equals(token))
				closeParen();
			else
			if (BasicFormatterImpl.BEGIN_CLAUSES.contains(lcToken))
				beginNewClause();
			else
			if (BasicFormatterImpl.END_CLAUSES.contains(lcToken))
				endNewClause();
			else
			if ("select".equals(lcToken))
				select();
			else
			if (BasicFormatterImpl.DML.contains(lcToken))
				updateOrInsertOrDelete();
			else
			if ("values".equals(lcToken))
				values();
			else
			if ("on".equals(lcToken))
				on();
			else
			if (afterBetween && lcToken.equals("and"))
			{
				misc();
				afterBetween = false;
			} else
			if (BasicFormatterImpl.LOGICAL.contains(lcToken))
				logical();
			else
			if (isWhitespace(token))
				white();
			else
				misc();
			if (!isWhitespace(token))
				lastToken = lcToken;
_L1:
			if (tokens.hasMoreTokens()) goto _L7; else goto _L6
_L6:
			return result.toString();
		}

[为啥呢]

印象中java是支持goto的，只是不建议使用。 不要的话改成条件或循环语句就可以了

[afeng999]

result.append( initial );

			while ( tokens.hasMoreTokens() ) {
				token = tokens.nextToken();
				lcToken = token.toLowerCase();

				if ( "'".equals( token ) ) {
					String t;
					do {
						t = tokens.nextToken();
						token += t;
					}
					while ( !"'".equals( t ) && tokens.hasMoreTokens() ); // cannot handle single quotes
				}
				else if ( "\"".equals( token ) ) {
					String t;
					do {
						t = tokens.nextToken();
						token += t;
					}
					while ( !"\"".equals( t ) );
				}

				if ( afterByOrSetOrFromOrSelect && ",".equals( token ) ) {
					commaAfterByOrFromOrSelect();
				}
				else if ( afterOn && ",".equals( token ) ) {
					commaAfterOn();
				}

				else if ( "(".equals( token ) ) {
					openParen();
				}
				else if ( ")".equals( token ) ) {
					closeParen();
				}

				else if ( BEGIN_CLAUSES.contains( lcToken ) ) {
					beginNewClause();
				}

				else if ( END_CLAUSES.contains( lcToken ) ) {
					endNewClause();
				}

				else if ( "select".equals( lcToken ) ) {
					select();
				}

				else if ( DML.contains( lcToken ) ) {
					updateOrInsertOrDelete();
				}

				else if ( "values".equals( lcToken ) ) {
					values();
				}

				else if ( "on".equals( lcToken ) ) {
					on();
				}

				else if ( afterBetween && lcToken.equals( "and" ) ) {
					misc();
					afterBetween = false;
				}

				else if ( LOGICAL.contains( lcToken ) ) {
					logical();
				}

				else if ( isWhitespace( token ) ) {
					white();
				}

				else {
					misc();
				}

				if ( !isWhitespace( token ) ) {
					lastToken = lcToken;
				}

			}
			return result.toString();