By

Contents
  1. 1. Background
  2. 2. Error Info
  3. 3. Solutions
  4. 4. Reasons

Background

Compare date in where clauses of MyBatis mapper XML query.

1
2
3
<if test="beginTime != null and beginTime != ''">
    createTime >= #{beginTime} and
</if>

Error Info

1
2
3
4
5
6
nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: java.lang.IllegalArgumentException: invalid comparison: java.util.Date and java.lang.String
### Cause: java.lang.IllegalArgumentException: invalid comparison: java.util.Date and java.lang.String
org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.exceptions.PersistenceException: 
### Error querying database.  Cause: java.lang.IllegalArgumentException: invalid comparison: java.util.Date and java.lang.String
### Cause: java.lang.IllegalArgumentException: invalid comparison: java.util.Date and java.lang.String

Solutions

remove beginTime != '' in the <if> element of MyBatis mapper XML file.

1
2
3
<if test="beginTime != null">
    createTime >= #{beginTime} and
</if>

Reasons

When you pass Date objects as a parameter to MyBatis mapper XML query, you can’t compare the Date object with a String object in MyBatis <if> elements.

Contents
  1. 1. Background
  2. 2. Error Info
  3. 3. Solutions
  4. 4. Reasons