Question

我正在尝试使用Querydsl在.list中选择特定列。我在.list()

收到以下错误消息

public List<Account> btnSearchClick(String sclientacctid, String sacctdesc, String sinvestigatorname,
            String sdeptname) {

        QAccount account = QAccount.account;
        QDepartment department = QDepartment.department;
        QAccountCPCMapping accountCPCMapping = QAccountCPCMapping.accountCPCMapping;
        QInvestigator investigator = QInvestigator.investigator;

        @SuppressWarnings("rawtypes")
        JPAQuery query = new JPAQuery(em);      
                  query
                       .from(account)
                       .innerJoin(account.department, department)
                       .innerJoin(account.accountCPC, accountCPCMapping)
                       .innerJoin(account.investigator, investigator)
                       .where(account.ninstid.eq(60))
                       .list(account.sclientacctid , department.sdeptname, investigator.sinvestigatorname , accountCPCMapping.sccpcode);

.list（）的错误消息

The method list(StringPath, StringPath, StringPath, StringPath) is undefined for the type QueryBase

任何人都可以告诉我为什么查询没有服用.list（）？

Answer 1

您使用的是哪个版本的querydsl？如果4.x的主要方法不再可用。尝试以这种方式修改您的代码：

QueryBase queryBase= new JPAQuery(em)....
FetchableQueryBase fetchable = (FetchableQueryBase) queryBase;
fetchable.fetch();

或降级到querydsl 3.x以使用list（）。

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Querydsl：QueryBase类型的方法列表未定义

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