java - JDBC模板更新查询错误

Question

我正在尝试在 Spring 中使用 jdbc 模板更新查询来更新 mysql DB

我的查询

String query = "update request set regions=?, requesttype=?, requestorigin=?, lineofbusiness=?, destinationenvironment=?, release=?, workrequest=?,"
                    + " spmid=?, requestingteam=? where requestid="+request.getRequestId()+";"; 
            System.out.println(query);
            Object[] params = {request.getRegions(), request.getRequestType(), request.getRequestOrigin(),
                    request.getLineOfBusiness(),
                    request.getDestinationEnvironment(),
                    request.getReleaseValue(), request.getWorkRequest(),
                    request.getSpmId(), request.getRequestingTeam()
                     };
            int[] types = { Types.VARCHAR, Types.VARCHAR, Types.VARCHAR, Types.VARCHAR,
                    Types.VARCHAR, Types.VARCHAR, Types.VARCHAR, Types.VARCHAR,
                    Types.VARCHAR };
            return jdbcTemplate.update(query, params, types);  

当我运行此查询时，它显示 Mysql 语法错误。我找不到
我哪里出错了。

堆栈跟踪

SEVERE: Servlet.service() for servlet [dispatcher] in context with path [/TDM] threw exception [Request processing failed; nested exception is org.springframework.jdbc.BadSqlGrammarException: PreparedStatementCallback; bad SQL grammar [update request set regions=?, requesttype=?, requestorigin=?, lineofbusiness=?, destinationenvironment=?, release=?, workrequest=?, spmid=?, requestingteam=? where requestid=319;]; nested exception is com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'release='Search and Load', workrequest='zxZ', spmid='zxXZxZ', requestingteam='Se' at line 1] with root cause
com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'release='Search and Load', workrequest='zxZ', spmid='zxXZxZ', requestingteam='Se' at line 1
    at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:936)
    at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2941)
    at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1623)
    at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1715)
    at com.mysql.jdbc.Connection.execSQL(Connection.java:3249)
    at com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1268)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1541)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1455)
    at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1440)
    at org.springframework.jdbc.core.JdbcTemplate$2.doInPreparedStatement(JdbcTemplate.java:873)
    at org.springframework.jdbc.core.JdbcTemplate$2.doInPreparedStatement(JdbcTemplate.java:866)
    at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:629)
    at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:866)
    at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:927)
    at org.springframework.jdbc.core.JdbcTemplate.update(JdbcTemplate.java:932)
    at org.verizon.tdm.dao.impl.RequestDaoImpl.updateRequest(RequestDaoImpl.java:62)
    at org.verizon.tdm.service.impl.RequestServiceImpl.updateRequestDetails(RequestServiceImpl.java:27)
    at org.verizon.tdm.controller.RequestDetailsController.saveRequestAjaxPage(RequestDetailsController.java:53)
    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:497)
    at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221)
    at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
    at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:111)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:806)
    at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:729)
    at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)
    at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959)
    at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
    at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
    at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:644)
    at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:725)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:301)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:239)
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:106)
    at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503)
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:136)
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:74)
    at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:610)
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:88)
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:516)
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1015)
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:652)
    at org.apache.coyote.http11.Http11NioProtocol$Http11ConnectionHandler.process(Http11NioProtocol.java:222)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1575)
    at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.run(NioEndpoint.java:1533)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)  

我的架构

***Field    Type    Null    Key Default Extra***
requestid   int(11) NO  PRI NULL    auto_increment
regions varchar(250)    YES     NULL    
requesttype varchar(95) YES     NULL    
requestorigin   varchar(25) YES     NULL    
lineofbusiness  varchar(250)    YES     NULL    
destinationenvironment  varchar(250)    YES     NULL    
release varchar(250)    YES     NULL    
workrequest varchar(250)    YES     NULL    
spmid   varchar(250)    YES     NULL    
requestingteam  varchar(250)    YES     NULL    
datapoints  varchar(500)    YES     NULL    
status  enum('SUBMITTED','SERVICED','DRAFT','INPROGRESS','FAILED')  YES     NULL    

Answer 1

基于此错误消息:

com.mysql.jdbc.exceptions.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'release='Search and Load', workrequest='zxZ', spmid='zxXZxZ', requestingteam='Se' at line 1

问题似乎出在 release 列上。 您确定该列存在吗？ (正确的拼写，正确的名称大小写。)

更新

事实证明，release是MySQL中的一个关键字。 您需要使用反引号引用该字段，如下所示:

String query = "update request set regions=?, `release`=?, workrequest=?,"

---

与您的问题无关， 但就像您注入(inject)要设置的值一样？参数，对条件中的 request.getRequestId() 执行相同操作，而不是字符串连接。这样它将以类型安全的方式注入(inject)。

也就是说，SQL 字符串的结尾应该如下所示:

... where requestid= ?

并在参数中添加 request.getRequestId()，就像您在 params 和 types 中设置的其他值一样。