### layui table渲染数据时报错(Caused by: org.attoparser.ParseException: Could not parse as expression: ")
1. 后端环境：Springboot + thymeleaf
2. 渲染数据报错
```bash
Caused by: org.attoparser.ParseException: Could not parse as expression: "
{type: 'checkbox'}
,{field:'id', title:'ID', width:80, fixed: 'left', unresize: true, sort: true, totalRowText: '合计'}
,{field:'name', title:'姓名', width:120, edit: 'text'}
,{field:'age', title:'年龄', width:80, sort: true, totalRow: true}
,{field:'sex', title:'性别', width:80, edit: 'text', sort: true}
,{fixed: 'right', title:'操作', toolbar: '#barDemo', width:150}
" (template: "admin" - line 72, col 22)
at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:393) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.attoparser.MarkupParser.parse(MarkupParser.java:257) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
... 48 common frames omitted
Caused by: org.thymeleaf.exceptions.TemplateProcessingException: Could not parse as expression: "
{type: 'checkbox'}
,{field:'id', title:'ID', width:80, fixed: 'left', unresize: true, sort: true, totalRowText: '合计'}
,{field:'name', title:'姓名', width:120, edit: 'text'}
,{field:'age', title:'年龄', width:80, sort: true, totalRow: true}
,{field:'sex', title:'性别', width:80, edit: 'text', sort: true}
,{fixed: 'right', title:'操作', toolbar: '#barDemo', width:150}
" (template: "admin" - line 72, col 22)
at org.thymeleaf.standard.expression.StandardExpressionParser.parseExpression(StandardExpressionParser.java:131) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.standard.expression.StandardExpressionParser.parseExpression(StandardExpressionParser.java:62) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.standard.expression.StandardExpressionParser.parseExpression(StandardExpressionParser.java:44) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.engine.EngineEventUtils.parseAttributeExpression(EngineEventUtils.java:220) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.engine.EngineEventUtils.computeAttributeExpression(EngineEventUtils.java:207) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.standard.processor.AbstractStandardExpressionAttributeTagProcessor.doProcess(AbstractStandardExpressionAttributeTagProcessor.java:125) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.engine.ProcessorTemplateHandler.handleOpenElement(ProcessorTemplateHandler.java:1314) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.engine.TemplateHandlerAdapterMarkupHandler.handleOpenElementEnd(TemplateHandlerAdapterMarkupHandler.java:304) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler$InlineMarkupAdapterPreProcessorHandler.handleOpenElementEnd(InlinedOutputExpressionMarkupHandler.java:278) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.standard.inline.OutputExpressionInlinePreProcessorHandler.performInlining(OutputExpressionInlinePreProcessorHandler.java:440) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.standard.inline.OutputExpressionInlinePreProcessorHandler.handleText(OutputExpressionInlinePreProcessorHandler.java:146) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler.handleText(InlinedOutputExpressionMarkupHandler.java:80) ~[thymeleaf-3.0.11.RELEASE.jar:3.0.11.RELEASE]
at org.attoparser.HtmlMarkupHandler.handleText(HtmlMarkupHandler.java:208) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.attoparser.AbstractChainedMarkupHandler.handleText(AbstractChainedMarkupHandler.java:203) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.attoparser.MarkupParser.parseBuffer(MarkupParser.java:557) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:301) ~[attoparser-2.0.5.RELEASE.jar:2.0.5.RELEASE]
... 50 common frames omitted
```
3. js渲染数据的代码
```js
table.render({
elem: '#test'
,method: 'GET'
,url:'/api/students'
,toolbar: '#toolbarDemo'
,title: '用户数据表'
,totalRow: true
,cols: [[
{type: 'checkbox'}
,{field:'id', title:'ID', width:80, fixed: 'left', unresize: true, sort: true, totalRowText: '合计'}
,{field:'name', title:'姓名', width:120, edit: 'text'}
,{field:'age', title:'年龄', width:80, sort: true, totalRow: true}
,{field:'sex', title:'性别', width:80, edit: 'text', sort: true}
,{fixed: 'right', title:'操作', toolbar: '#barDemo', width:150}
]]
,page: true
,parseData: function(res){ //res 即为原始返回的数据
return {
"code": res.code, //解析接口状态
"msg": res.msg, //解析提示文本
"count": res.count, //解析数据长度
"data": res.data //解析数据列表
};
}
});
```
#### 【解决方式】
1. 把col后面的`[[]]`变为
```txt
[
[
//TODO
]
]
```
**原因: 因为[[…]]之间的表达式在thymeleaf被认为是内联表达式,所以渲染错误**
[参考博客](https://blog.csdn.net/ystyaoshengting/articlehttps://img.qb5200.com/download-x/details/84773952)：https://blog.csdn.net/ystyaoshengting/articlehttps://img.qb5200.com/download-x/details/84773952
