如何在 SPRINGLETS Select2DataSupport 中使用 ConversionService - Spring Boot MVC

Question

我在控制器类中有这个方法

@Autowired
private ConversionService conversionService;



@GetMapping(produces = MediaType.APPLICATION_JSON_VALUE, name = "select2", value = "/siglevmubigeos/s2")
@ResponseBody
public ResponseEntity<Select2DataSupport<SigLevMUbigeo>> select2(GlobalSearch search, Pageable pageable, Locale locale){
    Page<SigLevMUbigeo> sigLevMUbigeos = sigLevMUbigeoService.findAll(search, pageable);
    String idExpression = "#{pkcubigeo}";
    Select2DataSupport<SigLevMUbigeo> select2Data = new Select2DataWithConversion<SigLevMUbigeo>(sigLevMUbigeos, idExpression, conversionService);
    return ResponseEntity.ok(select2Data);
}

带有 Thymeleaf 的 HTML：

<select id="fkcubigeo"
        class="form-control input-sm w3-select"
        data-allow-clear="true"                              
        th:field="*{fkcubigeo}">
        <option th:unless="*{fkcubigeo} == null" th:value="*{fkcubigeo.pkcubigeo}" th:text="*{fkcubigeo.cconcatenadistrito}" selected="selected">Ubigeo</option>
</select>

Javascript：

$(function() { $("#fkcubigeo").select2({ ajax: { url: "/myapp/siglevmubigeos/s2", cache: true } }); });

结果是：

方法返回此数据：

{"results":[{"id":"010101","text":"com.proviasnac.sigvial.persist.SigLevMUbigeo[ pkcubigeo=010101 ]","info":null},{"id":"010102","text":"com.proviasnac.sigvial.persist.SigLevMUbigeo[ pkcubigeo=010102 ]","info":null},....],"pagination":{"more":false}}

Answer 1

public ResponseEntity<Select2DataSupport<SigLevMUbigeo>> select2(GlobalSearch search, Pageable pageable) {
    Page<SigLevMUbigeo> data = sigLevMUbigeoService.findAll(search, pageable);
    String idExpression = "#{pkcubigeo}";
    String textExpression = "#{cconcatenadistrito}";
    Select2DataSupport<SigLevMUbigeo> select2Data = new Select2Data<SigLevMUbigeo>(data, idExpression,
            textExpression);
    return ResponseEntity.ok(select2Data);
}