一个书城后台系统练手,连接了sql server数据库,连接时没问题的
更新图书操作有问题 把参数设置为静态的时候可以更新数据库里面的内容
用?占位符的时候就报错了,,求大佬指点!
测试源代码
public void updateBook() {
bookDao.updateBook(new Book(5,"mxyisdog","dhxdhxhhh",new BigDecimal(32),123,44,"static/images"));
}
bookDao里面的方法
public int updateBook(Book book) {
String sql="update t_book set name=?,author=?,price=?,sales=?,stock=?,img_path=? where id=?";
return update(sql,book.getName(),book.getAuthor(),book.getPrice(),book.getSales(),book.getStock(),book.getImgPath(),book.getId());
}
IDEA报错日志
三月 20, 2020 4:58:52 下午 com.alibaba.druid.support.logging.JakartaCommonsLoggingImpl info
信息: {dataSource-1} inited
java.sql.SQLException: com.microsoft.sqlserver.jdbc.SQLServerException: ',' 附近有语法错误。 Query: update t_book set name=?,author=?,price=?,sales=?,stock=?,img_path=? where id=? Parameters: [mxyisdog, dhxdhxhhh, 32, 123, 44, static/images, 5]
at org.apache.commons.dbutils.QueryRunner.rethrow(QueryRunner.java:542)
at org.apache.commons.dbutils.QueryRunner.update(QueryRunner.java:599)
at com.atguigu.dao.impl.BaseDao.update(BaseDao.java:21)
at com.atguigu.dao.impl.BookDaoImpl.updateBook(BookDaoImpl.java:25)
at com.atguigu.test.BookDaoImplTest.updateBook(BookDaoImplTest.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
Process finished with exit code 0