帅到起飞,在thymeleaf中使用自定义工具类后端

我的个人博客已经上线一段时间了,但一直让我苦恼的事情是在帖子详情的链接,直接暴露了帖子的id,于是我想办法尝试在tymeleaf中使用自定义插件,通过expression应用到tymeleaf中效果图展示地址,随便点击一个帖子查看上方链接就行这里thymeleaf的版本号是3.x

自定义dialect

package com.daishu.bbs.config; import com.daishu.bbs.util.AESUtil; import org.thymeleaf.context.IExpressionContext; import org.thymeleaf.dialect.AbstractDialect; import org.thymeleaf.dialect.IExpressionObjectDialect; import org.thymeleaf.expression.IExpressionObjectFactory; import java.util.Collections; import java.util.Set; /** * @author : xuzhennan @Project : daishu @Package : com.daishu.bbs.config * @email : xuzhennan@58.com * @date : 2022年03月02日下午12:01 */ public class CustomDialect extends AbstractDialect implements IExpressionObjectDialect {public CustomDialect() { super("Custom Dialect"); }@Override public IExpressionObjectFactory getExpressionObjectFactory() { return new IExpressionObjectFactory() {@Override public Set getAllExpressionObjectNames() { return Collections.singleton("aesUtil"); }@Override public Object buildObject(IExpressionContext context, String expressionObjectName) { return new AESUtil(); }@Override public boolean isCacheable(String expressionObjectName) { return true; } }; } }

加载自定义dialect

@Configuration public class ThymeleafConfig { @Bean public CustomDialect myDialect() { return new CustomDialect(); } }

在页面的应用方式

如果tyhmeleaf版本号是2.x

public class MyDialect extends AbstractDialect implements IExpressionEnhancingDialect {public MyDialect() { super(); }@Override public String getPrefix() { // @see org.thymeleaf.dialect.IDialect#getPrefix return "xxx"; }@Override public boolean isLenient() { return false; }@Override public Map getAdditionalExpressionObjects(IProcessingContext ctx) { Map expressions = new HashMap<>(); expressions.put("aesUtil", new AESUtil()); return expressions; } }