Parameter index out of range (1 > number of parameters, which is 0) 报错及解决方案

使用mybatis查询是报错，SQL异常：Parameter index out of range (1 > number of parameters, which is 0)，感觉很奇怪，检查了好久才发现犯了个特别low的问题。

错误提示：

java.sql.SQLException: Parameter index out of range (1 > number of parameters, which is 0). 
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1055) 
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:956) 
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:926) 
at com.mysql.jdbc.PreparedStatement.checkBounds(PreparedStatement.java:3326) 
at com.mysql.jdbc.PreparedStatement.setInternal(PreparedStatement.java:3310) 
at com.mysql.jdbc.PreparedStatement.setString(PreparedStatement.java:4146) 
at ado.User_ADO.selOperation(User_ADO.java:60) 
at unit.ProssSeverl.rundom(ProssSeverl.java:95) 
at unit.ProssSeverl.regidit(ProssSeverl.java:71) 
at unit.ProssSeverl.Dealwith(ProssSeverl.java:43) 
at unit.ProssSeverl.service(ProssSeverl.java:36) 
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) 
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) 
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845) 
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583) 
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) 
at java.lang.Thread.run(Unknown Source) 

问题根源在查询使用查询时，在？的两边添加了单引号。

<select id="queryAllService" resultType="java.util.Map" parameterType="java.util.Map">
     SELECT
        service.id,
        service.`name`,
        SERVER .ip,
        service.`port`,
        service.software,
        service.instance,
        service.username,
        service.`password`,
        service.version
    FROM
        ldp_gov_service service
      INNER JOIN  ldp_gov_server SERVER on  SERVER.id= service.server_id 
      where service.software_type = '0'
      <if test="keyWord != null">
        AND service.`name` LIKE CONCAT(CONCAT('%','#{keyWord}','%'))
      </if>
    </select>

上面就是报错代码块，在#{keyWord}两边加上了单引号，把单引号去掉就可以了。

带有单引号，SQL语句为：SELECT service.id, service.name, SERVER .ip, service.port, service.software, service.instance, service.username, service.password, service.version FROM ldp_gov_service service INNER JOIN ldp_gov_server SERVER ON SERVER.id = service.server_id WHERE service.software_type = '0' AND service.name LIKE CONCAT(CONCAT('%', '?', '%'))

？号两边有单引号，SQL就没办法执行。