Caused by: org.apache.ibatis.binding.BindingException: Parameter ‘studentId‘ not found. Available pa

后端参数报错：Caused by: org.apache.ibatis.binding.BindingException: Parameter 'studentId' not found. Available parameters are [arg1, arg0, param1, param2]

原因：参数没指定清楚

int deleteInstitutionStudent( String studentId, String institutionId);

解决方法：加指定参数注解

@Param("studentId") 

 int deleteInstitutionStudent(@Param("studentId") String studentId, @Param("institutionId") String institutionId);

Caused by: org.apache.ibatis.binding.BindingException: Parameter 'studentId' not found. Available parameters are [arg1, arg0, param1, param2]
    at org.apache.ibatis.binding.MapperMethod$ParamMap.get(MapperMethod.java:212) ~[mybatis-3.5.10.jar:3.5.10]
    at org.apache.ibatis.reflection.wrapper.MapWrapper.get(MapWrapper.java:45) ~[mybatis-3.5.10.jar:3.5.10]
    at org.apache.ibatis.reflection.MetaObject.getValue(MetaObject.java:122) ~[mybatis-3.5.10.jar:3.5.10]
    at com.baomidou.mybatisplus.core.MybatisParameterHandler.setParameters(MybatisParameterHandler.java:228) ~[mybatis-plus-core-3.5.3.1.jar:3.5.3.1]
    at org.apache.ibatis.executor.statement.PreparedStatementHandler.parameterize(PreparedStatementHandler.java:94) ~[mybatis-3.5.10.jar:3.5.10]
    at org.apache.ibatis.executor.statement.RoutingStatementHandler.parameterize(RoutingStatementHandler.java:64) ~[mybatis-3.5.10.jar:3.5.10]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
    at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
    at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:64) ~[mybatis-3.5.10.jar:3.5.10]
    at jdk.proxy2.$Proxy251.parameterize(Unknown Source) ~[?:?]
    at org.apache.ibatis.executor.SimpleExecutor.prepareStatement(SimpleExecutor.java:88) ~[mybatis-3.5.10.jar:3.5.10]
    at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:49) ~[mybatis-3.5.10.jar:3.5.10]
    at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) ~[mybatis-3.5.10.jar:3.5.10]
    at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) ~[mybatis-3.5.10.jar:3.5.10]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
    at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
    at org.apache.ibatis.plugin.Invocation.proceed(Invocation.java:49) ~[mybatis-3.5.10.jar:3.5.10]
    at com.baomidou.mybatisplus.extension.plugins.MybatisPlusInterceptor.intercept(MybatisPlusInterceptor.java:106) ~[mybatis-plus-extension-3.5.3.1.jar:3.5.3.1]
    at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:62) ~[mybatis-3.5.10.jar:3.5.10]
    at jdk.proxy2.$Proxy250.update(Unknown Source) ~[?:?]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:194) ~[mybatis-3.5.10.jar:3.5.10]
    at org.apache.ibatis.session.defaults.DefaultSqlSession.delete(DefaultSqlSession.java:209) ~[mybatis-3.5.10.jar:3.5.10]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:?]
    at jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77) ~[?:?]
    at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:?]
    at java.lang.reflect.Method.invoke(Method.java:568) ~[?:?]
    at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:427) ~[mybatis-spring-2.0.7.jar:2.0.7]
    ... 109 more