标签：AbstractPipeline java 198 stream 排错 util attrRespVo 打卡 com
排错
AttrServiceImpl.java下加入这个代码后 规格参数页面又不显示了
@Override
public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String type) {
QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<>();
if(catelogId!=0){
queryWrapper.eq("catelog_id",catelogId);
}
String key = (String) params.get("key");
if (!StringUtils.isEmpty(key)){
queryWrapper.and((wrapper)->{
wrapper.eq("attr_id",key).or().like("attr_name",key);
});
}
IPage<AttrEntity> page = this.page(
new Query<AttrEntity>().getPage(params),
queryWrapper
);
PageUtils pageUtils = new PageUtils(page);
List<AttrEntity> records = page.getRecords();
List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
AttrRespVo attrRespVo = new AttrRespVo();
BeanUtils.copyProperties(attrEntity, attrRespVo);//把attrEntity里面的属性拷贝到attrRespVo里面
//1.设置分类和分组的名字
//分组
AttrAttrgroupRelationEntity attrId = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
if (attrId != null) {
AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrId.getAttrGroupId());
attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
}
//分类
CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
if (categoryEntity != null) {
attrRespVo.setCatelogName(categoryEntity.getName());
}
return attrRespVo;
}).collect(Collectors.toList());
pageUtils.setList(respVos);
return pageUtils;
报错内容
org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.TooManyResultsException: Expected one result (or null) to be returned by selectOne(), but found: 2
at org.mybatis.spring.MyBatisExceptionTranslator.translateExceptionIfPossible(MyBatisExceptionTranslator.java:96)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:441)
at com.sun.proxy.$Proxy97.selectOne(Unknown Source)
at org.mybatis.spring.SqlSessionTemplate.selectOne(SqlSessionTemplate.java:160)
at com.baomidou.mybatisplus.core.override.MybatisMapperMethod.execute(MybatisMapperMethod.java:89)
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy$PlainMethodInvoker.invoke(MybatisMapperProxy.java:148)
at com.baomidou.mybatisplus.core.override.MybatisMapperProxy.invoke(MybatisMapperProxy.java:89)
at com.sun.proxy.$Proxy98.selectOne(Unknown Source)
at com.doudou.gulimall.product.service.impl.AttrServiceImpl.lambda$queryBaseAttrPage$1(AttrServiceImpl.java:109)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1384)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:482)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:472)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at com.doudou.gulimall.product.service.impl.AttrServiceImpl.queryBaseAttrPage(AttrServiceImpl.java:123)
规格参数页面一直出错
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标签：AbstractPipeline,java,198,stream,排错,util,attrRespVo,打卡,com 来源： https://www.cnblogs.com/doudoutj/p/15059328.html
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