昨天遇到一个错误，之前也遇到过，但是之前遇到很快就解决了，昨天遇到这个错误当时看了大概10来分钟，还是没搞好，今天才来搞好了。

错误信息如下

  1. 08:34:43,302 DEBUG getTeachers:139 - ==>  Preparing: SELECT a.*,b.classId,b.className FROM TeacherInfo a INNER JOIN ClassInfo b ON a.teacherId=b.teacherId
  2. 08:34:43,316 DEBUG NewPooledConnection:430 - com.mchange.v2.c3p0.impl.NewPooledConnection@2f187f handling a throwable.
  3. java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0).
  4.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:959)
  5.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
  6.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
  7.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:862)
  8.     at com.mysql.jdbc.PreparedStatement.checkBounds(PreparedStatement.java:3319)
  9.     at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3304)
  10.     at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3341)
  11.     at com.mysql.jdbc.PreparedStatement.setNull(PreparedStatement.java:3380)
  12.     at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.setNull(NewProxyPreparedStatement.java:157)
  13.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  14.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  15.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  16.     at java.lang.reflect.Method.invoke(Unknown Source)
  17.     at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:70)
  18.     at com.sun.proxy.$Proxy34.setNull(Unknown Source)
  19.     at org.apache.ibatis.type.BaseTypeHandler.setParameter(BaseTypeHandler.java:43)
  20.     at org.apache.ibatis.scripting.defaults.DefaultParameterHandler.setParameters(DefaultParameterHandler.java:81)
  21.     at org.apache.ibatis.executor.statement.PreparedStatementHandler.parameterize(PreparedStatementHandler.java:80)
  22.     at org.apache.ibatis.executor.statement.RoutingStatementHandler.parameterize(RoutingStatementHandler.java:61)
  23.     at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:74)
  24.     at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:59)
  25.     at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:267)
  26.     at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:137)
  27.     at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:96)
  28.     at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:77)
  29.     at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108)
  30.     at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:102)
  31.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  32.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  33.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  34.     at java.lang.reflect.Method.invoke(Unknown Source)
  35.     at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434)
  36.     at com.sun.proxy.$Proxy15.selectList(Unknown Source)
  37.     at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:231)
  38.     at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:119)
  39.     at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63)
  40.     at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)
  41.     at com.sun.proxy.$Proxy20.getTeachers(Unknown Source)
  42.     at com.taohan.online.exam.service.impl.TeacherInfoServiceImpl.getTeachers(TeacherInfoServiceImpl.java:59)
  43.     at com.taohan.online.exam.handler.ClassInfoHandler.preUpdateClass(ClassInfoHandler.java:176)
  44.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  45.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  46.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  47.     at java.lang.reflect.Method.invoke(Unknown Source)
  48.     at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)
  49.     at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
  50.     at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
  51.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)
  52.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)
  53.     at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
  54.     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
  55.     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
  56.     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)
  57.     at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:860)
  58.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
  59.     at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
  60.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  61.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
  62.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  63.     at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
  64.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  65.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  66.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  67.     at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
  68.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  69.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  70.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  71.     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
  72.     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
  73.     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  74.     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
  75.     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
  76.     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
  77.     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
  78.     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
  79.     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
  80.     at java.lang.Thread.run(Unknown Source)
  81. 08:34:43,319 DEBUG SqlUtils:85 - Attempted to convert SQLException to SQLException. Leaving it alone. [SQLState: S1009; errorCode: 0]
  82. java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0).
  83.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:959)
  84.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
  85.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
  86.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:862)
  87.     at com.mysql.jdbc.PreparedStatement.checkBounds(PreparedStatement.java:3319)
  88.     at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3304)
  89.     at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3341)
  90.     at com.mysql.jdbc.PreparedStatement.setNull(PreparedStatement.java:3380)
  91.     at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.setNull(NewProxyPreparedStatement.java:157)
  92.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  93.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  94.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  95.     at java.lang.reflect.Method.invoke(Unknown Source)
  96.     at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:70)
  97.     at com.sun.proxy.$Proxy34.setNull(Unknown Source)
  98.     at org.apache.ibatis.type.BaseTypeHandler.setParameter(BaseTypeHandler.java:43)
  99.     at org.apache.ibatis.scripting.defaults.DefaultParameterHandler.setParameters(DefaultParameterHandler.java:81)
  100.     at org.apache.ibatis.executor.statement.PreparedStatementHandler.parameterize(PreparedStatementHandler.java:80)
  101.     at org.apache.ibatis.executor.statement.RoutingStatementHandler.parameterize(RoutingStatementHandler.java:61)
  102.     at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:74)
  103.     at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:59)
  104.     at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:267)
  105.     at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:137)
  106.     at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:96)
  107.     at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:77)
  108.     at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108)
  109.     at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:102)
  110.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  111.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  112.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  113.     at java.lang.reflect.Method.invoke(Unknown Source)
  114.     at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434)
  115.     at com.sun.proxy.$Proxy15.selectList(Unknown Source)
  116.     at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:231)
  117.     at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:119)
  118.     at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63)
  119.     at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)
  120.     at com.sun.proxy.$Proxy20.getTeachers(Unknown Source)
  121.     at com.taohan.online.exam.service.impl.TeacherInfoServiceImpl.getTeachers(TeacherInfoServiceImpl.java:59)
  122.     at com.taohan.online.exam.handler.ClassInfoHandler.preUpdateClass(ClassInfoHandler.java:176)
  123.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  124.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  125.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  126.     at java.lang.reflect.Method.invoke(Unknown Source)
  127.     at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)
  128.     at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
  129.     at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
  130.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)
  131.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)
  132.     at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
  133.     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
  134.     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
  135.     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)
  136.     at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:860)
  137.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
  138.     at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
  139.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  140.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
  141.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  142.     at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
  143.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  144.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  145.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  146.     at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
  147.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  148.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  149.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  150.     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
  151.     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
  152.     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  153.     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
  154.     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
  155.     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
  156.     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
  157.     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
  158.     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
  159.     at java.lang.Thread.run(Unknown Source)
  160. 08:34:43,320 DEBUG DefaultConnectionTester:126 - Testing a Connection in response to an Exception:
  161. java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0).
  162.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:959)
  163.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898)
  164.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887)
  165.     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:862)
  166.     at com.mysql.jdbc.PreparedStatement.checkBounds(PreparedStatement.java:3319)
  167.     at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3304)
  168.     at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3341)
  169.     at com.mysql.jdbc.PreparedStatement.setNull(PreparedStatement.java:3380)
  170.     at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.setNull(NewProxyPreparedStatement.java:157)
  171.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  172.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  173.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  174.     at java.lang.reflect.Method.invoke(Unknown Source)
  175.     at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:70)
  176.     at com.sun.proxy.$Proxy34.setNull(Unknown Source)
  177.     at org.apache.ibatis.type.BaseTypeHandler.setParameter(BaseTypeHandler.java:43)
  178.     at org.apache.ibatis.scripting.defaults.DefaultParameterHandler.setParameters(DefaultParameterHandler.java:81)
  179.     at org.apache.ibatis.executor.statement.PreparedStatementHandler.parameterize(PreparedStatementHandler.java:80)
  180.     at org.apache.ibatis.executor.statement.RoutingStatementHandler.parameterize(RoutingStatementHandler.java:61)
  181.     at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:74)
  182.     at org.apache.ibatis.executor.SimpleExecutor.doQuery(SimpleExecutor.java:59)
  183.     at org.apache.ibatis.executor.BaseExecutor.queryFromDatabase(BaseExecutor.java:267)
  184.     at org.apache.ibatis.executor.BaseExecutor.query(BaseExecutor.java:137)
  185.     at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:96)
  186.     at org.apache.ibatis.executor.CachingExecutor.query(CachingExecutor.java:77)
  187.     at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:108)
  188.     at org.apache.ibatis.session.defaults.DefaultSqlSession.selectList(DefaultSqlSession.java:102)
  189.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  190.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  191.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  192.     at java.lang.reflect.Method.invoke(Unknown Source)
  193.     at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:434)
  194.     at com.sun.proxy.$Proxy15.selectList(Unknown Source)
  195.     at org.mybatis.spring.SqlSessionTemplate.selectList(SqlSessionTemplate.java:231)
  196.     at org.apache.ibatis.binding.MapperMethod.executeForMany(MapperMethod.java:119)
  197.     at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:63)
  198.     at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:52)
  199.     at com.sun.proxy.$Proxy20.getTeachers(Unknown Source)
  200.     at com.taohan.online.exam.service.impl.TeacherInfoServiceImpl.getTeachers(TeacherInfoServiceImpl.java:59)
  201.     at com.taohan.online.exam.handler.ClassInfoHandler.preUpdateClass(ClassInfoHandler.java:176)
  202.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  203.     at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
  204.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
  205.     at java.lang.reflect.Method.invoke(Unknown Source)
  206.     at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222)
  207.     at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
  208.     at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110)
  209.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814)
  210.     at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737)
  211.     at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
  212.     at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
  213.     at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
  214.     at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969)
  215.     at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:860)
  216.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
  217.     at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845)
  218.     at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
  219.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
  220.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  221.     at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:77)
  222.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  223.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  224.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  225.     at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121)
  226.     at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
  227.     at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
  228.     at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
  229.     at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
  230.     at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
  231.     at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
  232.     at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
  233.     at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
  234.     at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
  235.     at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
  236.     at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
  237.     at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
  238.     at java.lang.Thread.run(Unknown Source)

错误描述

错误信息关键描述

  1. Parameter index out of range (1 > number of parameters, which is 0)

　　反正就是说我的参数存在问题

业务代码描述

　　修改班级信息时可以修改班级对应班主任，所以需要查询出对应的非班主任教师。

　　Handler

  1. @RequestMapping(value="edit/class/{classId}", method=RequestMethod.GET)
  2.     public ModelAndView preUpdateClass(@PathVariable("classId") Integer classId) {
  3.         logger.info("预修改班级处理");
  4.  
  5.         ModelAndView model = new ModelAndView();
  6.         //获取要修改班级
  7.         ClassInfo classInfo = classInfoService.getClassById(classId);
  8.         model.setViewName("/admin/classedit");
  9.         model.addObject("editClass", classInfo);
  10.         List<GradeInfo> grades = gradeInfoService.getGrades();
  11.         //获取不是班主任的教师
  12.         teacher.setIsWork(0);  // isWork为0就不是班主任
  13.         List<TeacherInfo> teachers = teacherInfoService.getTeachers(null);  //通过下面配置文件可知，该方法需要传入一个 Map 集合，而我这里传入一个 null
  14.         //如果没有可用班主任
  15.         if (teachers.size() == 0 || teachers == null) {
  16.             teacher.setTeacherId(classInfo.getTeacher().getTeacherId());
  17.             teacher.setTeacherName("暂无剩余教师");
  18.             teachers.add(teacher);
  19.         }
  20.         model.addObject("teachers", teachers);
  21.         model.addObject("grades", grades);
  22.  
  23.         return model;
  24.     }

　　映射文件

　　　　Statement会接收一个 Map 集合

  1. <resultMap type="com.taohan.online.exam.po.TeacherInfo" id="getTeacherResultMap">
  2.         <id column="teacherId" property="teacherId"/>
  3.         <result column="teacherName" property="teacherName" />
  4.         <result column="teacherAccount" property="teacherAccount"/>
  5.         <result column="teacherPwd" property="teacherPwd"/>
  6.         <result column="adminPower" property="adminPower"/>
  7.         <result column="isWork" property="isWork"/>
  8.         <association property="classInfo" javaType="com.taohan.online.exam.po.ClassInfo">
  9.             <id column="classId" property="classId"/>
  10.             <result column="className" property="className"/>
  11.         </association>
  12.     </resultMap>
  13.  
  14.     <parameterMap type="java.util.Map" id="getTeachersParameterMap">
  15.         <!-- 教师对象 -->
  16.         <parameter property="teacher" resultMap="getTeacherResultMap"/>
  17.         <!-- 起始位置索引 -->
  18.         <parameter property="startIndex" resultMap="getTeacherResultMap"/>
  19.         <!-- 每页显示数据量 -->
  20.         <parameter property="pageShow" resultMap="getTeacherResultMap"/>
  21.     </parameterMap>
  22.  
  23.     <!-- 使用 paramenterMap 查询 -->
  24.     <select id="getTeachers" parameterMap="getTeachersParameterMap" resultMap="getTeacherResultMap">
  25.         SELECT a.*,b.classId,b.className FROM TeacherInfo a
  26.         INNER JOIN ClassInfo b ON a.teacherId=b.teacherId
    　　　　　<!-- 
    　　　　　　getTeachers()方法我传入的是 null，那么，在下面进行条件判断的时候并不能找到 teacher、startIndex、pageShow，所以抛出异常
    　　　　　 -->
  27.         <where>
  28.             <if test="teacher != null">
  29.                 isWork=#{teacher.isWork}
  30.             </if>
  31.         </where>
  32.         <if test="startIndex != null and pageShow != null">
  33.             LIMIT #{startIndex}, #{pageShow}
  34.         </if>
  35.     </select>

总结

　　通过之前犯过类似的错误，以及这次错误，我发现 今后只要是 Parameter index out of range (1 > number of parameters, which is 0) 类似的错误大致定位在 映射文件和调用方法传入参数，

　　映射文件

　　　　如果使用了 parameterMap, resultMap，或是返回集合，就要检查参数名称和属性名称是否一致

　　调用方法

　　　　针对使用了 parameterMap 或 parameterType，需要检查传入Map中的键是否存在、匹配，或传入对象是否存在指定属性

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