解决在mybatis中使用CTE进行oracle查询数据类型为long的字段出现流关闭问题
今天把notice表中的content字段改为long字段后，含有该字段的使用CTE的查询语句报错了。提示一下错误
### Cause: java.sql.SQLException: 流已被关闭
; uncategorized SQLException for SQL []; SQL state [99999]; error code [17027]; 流已被关闭; nested exception is java.sql.SQLException: 流已被关闭] with root cause
java.sql.SQLException: 流已被关闭
at oracle.jdbc.driver.LongAccessor.getBytesInternal(LongAccessor.java:156)
at oracle.jdbc.driver.LongAccessor.getBytes(LongAccessor.java:126)
at oracle.jdbc.driver.LongAccessor.getString(LongAccessor.java:201)
at oracle.jdbc.driver.T4CLongAccessor.getString(T4CLongAccessor.java:427)
at oracle.jdbc.driver.OracleResultSetImpl.getString(OracleResultSetImpl.java:1251)
at oracle.jdbc.driver.OracleResultSet.getString(OracleResultSet.java:494)
at sun.reflect.GeneratedMethodAccessor30.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.ibatis.logging.jdbc.ResultSetLogger.invoke(ResultSetLogger.java:67)
at com.sun.proxy.$Proxy75.getString(Unknown Source)
at org.apache.ibatis.type.StringTypeHandler.getNullableResult(StringTypeHandler.java:37)
at org.apache.ibatis.type.StringTypeHandler.getNullableResult(StringTypeHandler.java:26)
at org.apache.ibatis.type.BaseTypeHandler.getResult(BaseTypeHandler.java:55)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getPropertyMappingValue(DefaultResultSetHandler.java:390)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.applyPropertyMappings(DefaultResultSetHandler.java:364)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.getRowValue(DefaultResultSetHandler.java:338)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValuesForSimpleResultMap(DefaultResultSetHandler.java:291)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleRowValues(DefaultResultSetHandler.java:266)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSet(DefaultResultSetHandler.java:236)
at org.apache.ibatis.executor.resultset.DefaultResultSetHandler.handleResultSets(DefaultResultSetHandler.java:150)
at org.apache.ibatis.executor.statement.PreparedStatementHandler.query(PreparedStatementHandler.java:60)
at org.apache.ibatis.executor.statement.RoutingStatementHandler.query(RoutingStatementHandler.java:73)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.ibatis.plugin.Invocation.proceed(Invocation.java:49)
at com.moral.frame.dao.PaginationInterceptor.query(PaginationInterceptor.java:137)
at com.moral.frame.dao.PaginationInterceptor.intercept(PaginationInterceptor.java:78)
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:60)
at com.sun.proxy.$Proxy140.query(Unknown Source)
at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:60)
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:267)
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:137)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:96)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:77)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)
at com.sun.proxy.$Proxy83.selectList(Unknown Source)
at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205)
at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:117)
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)
at com.sun.proxy.$Proxy122.getReceiveNoticeList(Unknown Source)
at com.moral.notice.service.impl.NoticeServiceImpl.getReceiveNoticeList(NoticeServiceImpl.java:161)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:196)
at com.sun.proxy.$Proxy126.getReceiveNoticeList(Unknown Source)
at com.moral.notice.view.NoticeController.getNoticeListPage(NoticeController.java:69)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.logging.log4j.core.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:66)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
但是我没有使用CTE查询的语句可以正常执行，不会报错，下面是cte的查询语句和普通的查询语句
With NoticeCTE As(
Select
*
from (
Select
noticeKey,
title,
content
From Notice
Order by noticeKey desc
)
), NoticeReadCTE As(
Select
distinct nc.noticeKey, 1 readState
From NoticeCTE nc, notice_Reader nr
Where nc.noticeKey = nr.noticeKey
And nr.readerCode = #{readerCode}
)
Select
nc.*, readState
From NoticeCTE nc
left join NoticeReadCTE rc on nc.noticeKey = rc.noticeKey
order by nc.noticeKey desc
以下是普通的查询语句
Select
noticeKey,
title,
content
From Notice
Where noticeKey = #{noticeKey}
将long类型改成clob，以后上述的sql语句就可以正常执行了。之所以会出现上述原因是因为：
1、cte会自动创建临时表
2、而含有long类型字段不能通过create table b as select * from a方式创建表
3、同时long数据类型已经过时，不建议使用，建议使用clob数据类型
另外还发现在使用map传递参数给mybaits中的CTE查询语句时必须明确指定参数的数据类型，否则会报以下错误
; uncategorized SQLException for SQL []; SQL state [99999]; error code [17004]; 无效的列类型: 1111; nested exception is java.sql.SQLException: 无效的列类型: 1111] with root cause
java.sql.SQLException: 无效的列类型: 1111
at oracle.jdbc.driver.OracleStatement.getInternalType(OracleStatement.java:3900)
at oracle.jdbc.driver.OraclePreparedStatement.setNullCritical(OraclePreparedStatement.java:4406)
at oracle.jdbc.driver.OraclePreparedStatement.setNull(OraclePreparedStatement.java:4388)
at oracle.jdbc.driver.OraclePreparedStatementWrapper.setNull(OraclePreparedStatementWrapper.java:1281)
at org.apache.ibatis.type.BaseTypeHandler.setParameter(BaseTypeHandler.java:43)
at org.apache.ibatis.scripting.defaults.DefaultParameterHandler.setParameters(DefaultParameterHandler.java:81)
at com.moral.frame.dao.PaginationInterceptor.setParameters(PaginationInterceptor.java:210)
at com.moral.frame.dao.PaginationInterceptor.count(PaginationInterceptor.java:166)
at com.moral.frame.dao.PaginationInterceptor.query(PaginationInterceptor.java:135)
at com.moral.frame.dao.PaginationInterceptor.intercept(PaginationInterceptor.java:78)
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:60)
at com.sun.proxy.$Proxy72.query(Unknown Source)
at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:60)
at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:267)
at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:137)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:96)
at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:77)
at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:358)
at com.sun.proxy.$Proxy14.selectList(Unknown Source)
at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:205)
at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:117)
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63)
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)
at com.sun.proxy.$Proxy54.getReceiveNoticeList(Unknown Source)
at com.moral.notice.service.impl.NoticeServiceImpl.getReceiveNoticeList(NoticeServiceImpl.java:162)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:309)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:196)
at com.sun.proxy.$Proxy58.getReceiveNoticeList(Unknown Source)
at com.moral.notice.view.NoticeController.getNoticeListPage(NoticeController.java:80)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:436)
at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:424)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:549)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:620)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:727)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.logging.log4j.core.web.Log4jServletFilter.doFilter(Log4jServletFilter.java:66)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:313)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)
正确的mybaitis的sql语句配置为
With NoticeCTE As(
Select
*
from (
Select
noticeKey,
title,
content
From Notice
<where>
<trim suffixOverrides="and">
<if test="arrDivisionKey != null ">
and divisionKey in (
<foreach collection="arrDivisionKey" item="divisionKey" index="index" separator=" , " >
#{divisionKey, jdbcType=VARCHAR}
</foreach>
)
</if> <if test="readerCode != null and readerCode != ''">
And createCode != #{readerCode, jdbcType=VARCHAR}
</if>
</trim>
</where>
Order by noticeKey desc
)
<where>
<trim suffixOverrides="and">
<if test="noticeCount != null and noticeCount > 0">
and rowNum <= #{noticeCount, jdbcType=NUMBERIC}
</if>
</trim>
</where>
), NoticeReadCTE As(
Select
distinct nc.noticeKey, 1 readState
From NoticeCTE nc, mor_notice_Reader nr
Where nc.noticeKey = nr.noticeKey
And nr.readerCode = #{readerCode, jdbcType=VARCHAR}
)
Select
nc.*, readState
From NoticeCTE nc
left join NoticeReadCTE rc on nc.noticeKey = rc.noticeKey
order by nc.noticeKey desc
出现错误的原因是传入的参数为Map<String, Object>类型，mybatis无法确定参数的实际类型，因此需要手工指定。
解决在mybatis中使用CTE进行oracle查询数据类型为long的字段出现流关闭问题的更多相关文章
- Mybatis中多表联查，查询出来的字段出现重名，造成数据异常的解决方法！
在做一对多出现的问题,引发的思考:当数据库表中,主表的主键id和明细表的中的字段名相同时怎么办?Mybatis进行自动映射赋值的时候会不会出现异常? 注意:M ...
- Mybatis中动态SQL多条件查询
Mybatis中动态SQL多条件查询 mybatis中用于实现动态SQL的元素有: if:用if实现条件的选择,用于定义where的字句的条件. choose(when otherwise)相当于Ja ...
- Mybatis笔记四：Mybatis中的resultType和resultMap查询操作实例详解
resultType和resultMap只能有一个成立,resultType是直接表示返回类型的,而resultMap则是对外部ResultMap的引用,resultMap解决复杂查询是的映射问题.比 ...
- Mybatis中的关联映射和查询
一.商品订单数据模型 1.数据表 这里定义了四个表,分别表示用户,商品,订单,和订单详情. 用户表user CREATE TABLE `user` ( `id` int(11) NOT NULL AU ...
- Mybatis 中的转义字符及常用查询
转译符 1.特殊字符转译 < < 小于 > > 大于 & & 与 ' ’ 单引号 " " 双引号 需要注意的是分号是必不可少的. 比如 a ...
- mybatis中使用mysql的模糊查询字符串拼接（like）
方法一: <!-- 根据hid,hanme,grade,模糊查询医院信息--> 方法一: List<Hospital> getHospitalLike(@Param(" ...
- 关于mybatis中sql映射文件模糊查询的使用
1.从前台传递一个String类型的参数到后台进行查询,如果牵涉到模糊查询会报错,应该把参数封装到对象中再进行传递然后进行模糊查询 2.一个查询框,多个查询条件 <if test="c ...
- myBatis中 collection 或 association 联合查询 中column 传入多个参数值
下面是一个树形结构表自连接 联合查询 Demo <resultMap id="BaseResultMap" type="com.maidan.daas.entit ...
- Oracle 查询一个表的所有字段
select * from user_tab_columns where table_name = 'T_B_CLIENT_MSG'
随机推荐
- hadoop mapreduce核心功能描述
核心功能描述 应用程序通常会通过提供map和reduce来实现 Mapper和Reducer接口,它们组成作业的核心. Mapper Mapper将输入键值对(key/value pair)映射到一组 ...
- bzoj2286
很明显,20%=mincut 40%=每次暴力树形dp那么正解是什么呢?不难发现∑ki<=500000,也就是每次询问的复杂度都要跟k有关从树形dp工作的角度来看,确实有很多点我们根本就没必要访 ...
- BZOJ_2194_快速傅立叶之二_(FFT+卷积)
描述 http://www.lydsy.com/JudgeOnline/problem.php?id=2194 给出序列\(a[0],a[1],...,a[n-1]\)和\(b[0],b[1],... ...
- WordPress Think Responsive Themes ‘upload_settings_image.php’任意文件上传漏洞
漏洞名称: WordPress Think Responsive Themes ‘upload_settings_image.php’任意文件上传漏洞 CNNVD编号: CNNVD-201311-06 ...
- 分布式缓存系统Memcached简介与实践(.NET memcached client library)
缘起: 在数据驱动的web开发中,经常要重复从数据库中取出相同的数据,这种重复极大的增加了数据库负载.缓存是解决这个问题的好办法.但是ASP.NET中的虽然已经可以实现对页面局部进行缓存,但还是不够灵 ...
- ifconfig命令
许多windows非常熟悉ipconfig命令行工具,它被用来获取网络接口配置信息并对此进行修改.Linux系统拥有一个类似的工具,也就是ifconfig(interfaces config).通常需 ...
- mongodb c++ driver(2.53)windows编译
编译环境: (1) 下载python2.7, 使用x86_32位,因为scons只有32位安装包可用: (2) 下载scons2.3.0,The current production release ...
- 在今天，我们为什么还要做一个CMS
我们今天看到,在这个移动大潮席卷来的这几年,互联网以惊人的速度改变着这个世界.包括我们这个在中国互联网史上有重大影响力的“站长”,也几乎全军覆没.当然随着站长们兴起的开源CMS,到今天也都穷途末路了. ...
- HW3.17
import java.util.Scanner; public class Solution { public static void main(String[] args) { Scanner i ...
- HW2.11
控制台: import java.util.Scanner; public class Solution { public static void main(String[] args) { Scan ...