SEVERE: Servlet.service() for servlet [SpringMVC] in context with path [] threw exception ........

 

　运行项目项目后，因为前端用了layui框架，所以页面显示接口异常，

　

　查看tomcat日志，发现报了这个错误，关键是我犯了不止一次这个错误。所以记下来。

feb 28, 2019 5:18:39 pm org.apache.catalina.core.applicationcontext log
severe: servlet.service() for servlet [springmvc] in context with path [] threw exception 
[request processing failed; nested exception is org.mybatis.spring.mybatissystemexception: 
nested exception is org.apache.ibatis.builder.builderexception: error evaluating expression ''.
 cause: org.apache.ibatis.ognl.expressionsyntaxexception: malformed ognl expression: 
 [org.apache.ibatis.ognl.parseexception: encountered "<eof>" at line 1, column 0.
was expecting one of:
    ":" ...
    "not" ...
    "+" ...
    "-" ...
    "~" ...
    "!" ...
    "(" ...
    "true" ...
    "false" ...
    "null" ...
    "#this" ...
    "#root" ...
    "#" ...
    "[" ...
    "{" ...
    "@" ...
    "new" ...
    <ident> ...
    <dynamic_subscript> ...
    "\'" ...
    "`" ...
    "\"" ...
    <int_literal> ...
    <flt_literal> ...
    ]] with root cause
org.apache.ibatis.ognl.parseexception: encountered "<eof>" at line 1, column 0.

 

原因是mapper.xml文件中if判断条件没有写

          <if test="">// test="aaa!=null" 不写报错
              and locate(#{parameter}，字段)>0
　　　　　　</if>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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