spring boot 集成solr

首先solr服务器安装过程不再赘述，在客户端集成的时候踩了点坑，记录下来，大家一起学习~

在pom文件的

dependencyManagement -》 dependencies 

标签里面添加

<dependency> <groupId>org.springframework.data</groupId><artifactId>spring-data-solr</artifactId><version>${spring.data.solr.version}</version></dependency>

properties 

标签里面添加

<spring.data.solr.version>2.1.1.RELEASE</spring.data.solr.version>

下面是solr的jar包，

<!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-solr --><dependency><groupId>org.springframework.data</groupId><artifactId>spring-data-solr</artifactId></dependency>

注入SolrClient,及相关代码

 @Autowired    private SolrClient client;    @RequestMapping("/testSolr")    public String testSolr(String param) throws IOException, SolrServerException {        try {            //查询参数对象，继承了SolrParams抽象类            ModifiableSolrParams params =new ModifiableSolrParams();            //查询条件            params.add("q","companyName:*"+param+"*");            //这里的分页和mysql分页一样            params.add("start","0");            params.add("rows","10");            QueryResponse query = client.query(params);            //查询结果            SolrDocumentList results = query.getResults();            //将查询结果直接转化为List，这里有个坑，对象每个属性必须要加 @Field("id") 属性，包为import org.apache.solr.client.solrj.beans.Field;            //如果不加属性的话，会返回相等长度的的List，但是List里面每个对象的值均为空            List<SimplePublicCustomer> beans = query.getBeans(SimplePublicCustomer.class);            return results.toString();        }catch (Exception e){            e.printStackTrace();        }       return null;    }

完~

tips：

因为本人比较懒。所以不想去解析返回来的值，再一个一个组装成List，所以看了下query.getBeans 这个方法的 源码：

        

 

 DocumentObjectBinder  类 public <T> List<T> getBeans(Class<T> clazz, SolrDocumentList solrDocList) {

        List fields = this.getDocFields(clazz); //这个句话获取你对象里面的属性列表        ArrayList result = new ArrayList(solrDocList.size());        Iterator i$ = solrDocList.iterator();        while(i$.hasNext()) {            SolrDocument sdoc = (SolrDocument)i$.next();            result.add(this.getBean(clazz, fields, sdoc));        }        return result;    }

    private List<DocumentObjectBinder.DocField> getDocFields(Class clazz) {        List fields = (List)this.infocache.get(clazz);            if(fields == null) {            Map var3 = this.infocache;            synchronized(this.infocache) {                this.infocache.put(clazz, fields = this.collectInfo(clazz)); //从缓存中获取不到相关信息，则执行collectiInfo方法获取            }        }        return fields;    }

    private List<DocumentObjectBinder.DocField> collectInfo(Class clazz) {        ArrayList fields = new ArrayList();        Class superClazz = clazz;        ArrayList members;        for(members = new ArrayList(); superClazz != null && superClazz != Object.class; superClazz = superClazz.getSuperclass()) {            members.addAll(Arrays.asList(superClazz.getDeclaredFields()));            members.addAll(Arrays.asList(superClazz.getDeclaredMethods()));        }        boolean childFieldFound = false;        Iterator i$ = members.iterator();        while(i$.hasNext()) {             final AccessibleObject member = (AccessibleObject)i$.next();            if(member.isAnnotationPresent(Field.class)) {            //重点：获取当前字段的注解，如果没有注解，则不添加此字段！                AccessController.doPrivileged(new PrivilegedAction() {                    @SuppressForbidden(                        reason = "Needs access to possibly private @Field annotated fields/methods"                    )                    public Void run() {                        member.setAccessible(true);                        return null;                    }                });                DocumentObjectBinder.DocField df = new DocumentObjectBinder.DocField(member);                if(df.child != null) {                    if(childFieldFound) {                        throw new BindingException(clazz.getName() + " cannot have more than one Field with child=true");                    }                    childFieldFound = true;                }                fields.add(df);            }        }        return fields;    }

基本上就这些，solr客户端集成基本完事，更详细的请看api等资料。