保存实体时出现UTF 8问题

我将SpringBoot2与JPA、Hibernate和Postgres结合使用。

在我的建筑里。格拉德尔,我有

任务.withtype(javacompile){
options.compilerargs=[“-xlint:unchecked”,“-xlint:deprecation”,“-parameters”]
选项.encoding=“utf-8”
}

我在这里上了一些课 https://pastebin.com/WgDqZkjf

我对UTF8有问题

在调试中我看到了

    select
        nextval ('ignar.hibernate_sequence')
Hibernate: 
    select
        nextval ('ignar.samples_id_seq')
Hibernate: 
    insert 
    into
        ignar.samplings
        (available_for_test, build_date, color_id, dimension_id, machine_id, print, product_id, reception_date, remark, special_try, test_done, to_print, delay_before_doing_test, press, quantity_received, dtype, id, year) 
    values
        (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'TraditionalSamplings', ?, ?)
Hibernate: 
    insert 
    into
        ignar.samples
        (created_at, updated_at, absorption_printed, aen_remarque, certificat_include, cube, durability_printed, fresh_density, fresh_weigth, gen_remarque, label, position, sample_letter, sampling_id, sampling_year, absorption, absorption_number, coloration, coloration_number, compression, compression_number, density, draw_down, draw_down_number, durability, durability_number, granulometry, granulometry_number, organic_material, organic_material_number, scaling, scaling_number, id) 
    values
        (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
2018-05-21 15:38:21.214  WARN 2973 --- [io-8080-exec-10] o.h.engine.jdbc.spi.SqlExceptionHelper   : SQL Error: 0, SQLState: 22021
2018-05-21 15:38:21.215 ERROR 2973 --- [io-8080-exec-10] o.h.engine.jdbc.spi.SqlExceptionHelper   : ERROR: invalid byte sequence for encoding "UTF8": 0x00
2018-05-21 15:38:21.215 ERROR 2973 --- [io-8080-exec-10] o.h.i.ExceptionMapperStandardImpl        : HHH000346: Error during managed flush [org.hibernate.exception.DataException: could not execute statement]