找不到Spring dao类org.springframework.dao.DuplicateKeyException [英] Spring dao class not found org.springframework.dao.DuplicateKeyException

问题描述

我正在尝试使用 jdbcTemplate.query ，但出现类未找到错误。我正在使用spring-dao 2.0.8，并在库中查找，确实找不到任何 DuplicateKeyException 类。来自 maven存储库，这似乎是spring-dao的最新版本。

I am trying to use a jdbcTemplate.query and I get the class not found error. I am using spring-dao 2.0.8 and looked inside the library and couldn't find any DuplicateKeyException class indeed. From maven repository this seems to be the latest release for spring-dao.

我得到错误的代码是：

ResultSet resultSet = (ResultSet)jdbcTemplate.query (query, new ResultSetExtractor<ResultSet>() {
            @Override
            public ResultSet extractData(ResultSet rs) throws SQLException, DataAccessException {
                return rs;
            }
        });

堆栈：

Exception in thread "main" java.lang.NoClassDefFoundError: org/springframework/dao/DuplicateKeyException
    at org.springframework.jdbc.support.JdbcAccessor.getExceptionTranslator(JdbcAccessor.java:99)
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:407)
    at org.springframework.jdbc.core.JdbcTemplate.query(JdbcTemplate.java:456)
    at DAO.MySQLAccess.getAccounts(MySQLAccess.java:95)
Caused by: java.lang.ClassNotFoundException: org.springframework.dao.DuplicateKeyException
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
    ... 7 more

这不是最新版本还是为什么首先给出错误？

Isn't this the latest release or why is it giving the error in the first place?

推荐答案

听起来像您的类路径中缺少一个jar。我猜你不是在使用Maven。

Sounds like you have a jar missing from the classpath. I guess you're not using maven.

我搜索了包含此类的jar并提出了这个方案。

http://mavenhub.com/c/org/springframework/dao/DuplicateKeyException/jar

I searched for jars containing this class and came up with this.
http://mavenhub.com/c/org/springframework/dao/DuplicateKeyException/jar

看起来您需要org.springframework.transaction jar。或者使用maven，它应该可以为您解决依赖性。

Looks like you need the org.springframework.transaction jar. Or use maven and it should work out your dependencies for you.

这篇关于找不到Spring dao类org.springframework.dao.DuplicateKeyException的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！